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Finding the Fourth Proportional to 495,007.92, 683,127.36 and 280,145.52

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Solution

The fourth proportional to 495,007.92, 683,127.36 and 280,145.52 is: 386,610.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,007.92 : 683,127.36 = 280,145.52 : x
  2. Step 2: Convert to fraction form
    495,007.92/683,127.36 = 280,145.52/x
  3. Step 3: Cross multiply
    495,007.92x = 683,127.36 × 280,145.52
  4. Step 4: Simplify right side
    495,007.92x = 191,375,069,493.43
  5. Step 5: Solve for x
    x = 191,375,069,493.43/495,007.92
  6. Step 6: Final answer
    x = 386,610.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.