Home / 1,210,133.40-1,815,200.10-499,925.40

Finding the Fourth Proportional to 1,210,133.40, 1,815,200.10 and 499,925.40

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Solution

The fourth proportional to 1,210,133.40, 1,815,200.10 and 499,925.40 is: 749,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,133.40 : 1,815,200.10 = 499,925.40 : x
  2. Step 2: Convert to fraction form
    1,210,133.40/1,815,200.10 = 499,925.40/x
  3. Step 3: Cross multiply
    1,210,133.40x = 1,815,200.10 × 499,925.40
  4. Step 4: Simplify right side
    1,210,133.40x = 907,464,636,072.54
  5. Step 5: Solve for x
    x = 907,464,636,072.54/1,210,133.40
  6. Step 6: Final answer
    x = 749,888.10

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Double scale
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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.