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Finding the Fourth Proportional to 604,908.30, 907,362.45 and 392,331.90

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Solution

The fourth proportional to 604,908.30, 907,362.45 and 392,331.90 is: 588,497.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,908.30 : 907,362.45 = 392,331.90 : x
  2. Step 2: Convert to fraction form
    604,908.30/907,362.45 = 392,331.90/x
  3. Step 3: Cross multiply
    604,908.30x = 907,362.45 × 392,331.90
  4. Step 4: Simplify right side
    604,908.30x = 355,987,233,997.16
  5. Step 5: Solve for x
    x = 355,987,233,997.16/604,908.30
  6. Step 6: Final answer
    x = 588,497.85

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Similar ratio
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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.