Home / 1,210,205.40-1,815,308.10-499,997.40

Finding the Fourth Proportional to 1,210,205.40, 1,815,308.10 and 499,997.40

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Solution

The fourth proportional to 1,210,205.40, 1,815,308.10 and 499,997.40 is: 749,996.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,205.40 : 1,815,308.10 = 499,997.40 : x
  2. Step 2: Convert to fraction form
    1,210,205.40/1,815,308.10 = 499,997.40/x
  3. Step 3: Cross multiply
    1,210,205.40x = 1,815,308.10 × 499,997.40
  4. Step 4: Simplify right side
    1,210,205.40x = 907,649,330,198.94
  5. Step 5: Solve for x
    x = 907,649,330,198.94/1,210,205.40
  6. Step 6: Final answer
    x = 749,996.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,210,206.40, 1,815,309.60 and 499,998.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.