Home / 1,210,065.40-1,815,098.10-499,857.40

Finding the Fourth Proportional to 1,210,065.40, 1,815,098.10 and 499,857.40

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Solution

The fourth proportional to 1,210,065.40, 1,815,098.10 and 499,857.40 is: 749,786.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,065.40 : 1,815,098.10 = 499,857.40 : x
  2. Step 2: Convert to fraction form
    1,210,065.40/1,815,098.10 = 499,857.40/x
  3. Step 3: Cross multiply
    1,210,065.40x = 1,815,098.10 × 499,857.40
  4. Step 4: Simplify right side
    1,210,065.40x = 907,290,217,010.94
  5. Step 5: Solve for x
    x = 907,290,217,010.94/1,210,065.40
  6. Step 6: Final answer
    x = 749,786.10

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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.