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Finding the Fourth Proportional to 613,808.28, 847,098 and 372,101.04

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Solution

The fourth proportional to 613,808.28, 847,098 and 372,101.04 is: 513,525.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,808.28 : 847,098 = 372,101.04 : x
  2. Step 2: Convert to fraction form
    613,808.28/847,098 = 372,101.04/x
  3. Step 3: Cross multiply
    613,808.28x = 847,098 × 372,101.04
  4. Step 4: Simplify right side
    613,808.28x = 315,206,046,781.92
  5. Step 5: Solve for x
    x = 315,206,046,781.92/613,808.28
  6. Step 6: Final answer
    x = 513,525.24

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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.