Home / 721,213.66-1,081,892.58-247,836.70

Finding the Fourth Proportional to 721,213.66, 1,081,892.58 and 247,836.70

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Solution

The fourth proportional to 721,213.66, 1,081,892.58 and 247,836.70 is: 371,779.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,213.66 : 1,081,892.58 = 247,836.70 : x
  2. Step 2: Convert to fraction form
    721,213.66/1,081,892.58 = 247,836.70/x
  3. Step 3: Cross multiply
    721,213.66x = 1,081,892.58 × 247,836.70
  4. Step 4: Simplify right side
    721,213.66x = 268,132,686,781.69
  5. Step 5: Solve for x
    x = 268,132,686,781.69/721,213.66
  6. Step 6: Final answer
    x = 371,779.82

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Double scale
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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.