Home / 987,397.92-1,480,979.52-257,873.04

Finding the Fourth Proportional to 987,397.92, 1,480,979.52 and 257,873.04

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Solution

The fourth proportional to 987,397.92, 1,480,979.52 and 257,873.04 is: 386,778.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,397.92 : 1,480,979.52 = 257,873.04 : x
  2. Step 2: Convert to fraction form
    987,397.92/1,480,979.52 = 257,873.04/x
  3. Step 3: Cross multiply
    987,397.92x = 1,480,979.52 × 257,873.04
  4. Step 4: Simplify right side
    987,397.92x = 381,904,691,000.14
  5. Step 5: Solve for x
    x = 381,904,691,000.14/987,397.92
  6. Step 6: Final answer
    x = 386,778.91

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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.