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Finding the Fourth Proportional to 392,901.27, 585,648.02 and 372,955.83

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Solution

The fourth proportional to 392,901.27, 585,648.02 and 372,955.83 is: 555,917.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,901.27 : 585,648.02 = 372,955.83 : x
  2. Step 2: Convert to fraction form
    392,901.27/585,648.02 = 372,955.83/x
  3. Step 3: Cross multiply
    392,901.27x = 585,648.02 × 372,955.83
  4. Step 4: Simplify right side
    392,901.27x = 218,420,841,522.18
  5. Step 5: Solve for x
    x = 218,420,841,522.18/392,901.27
  6. Step 6: Final answer
    x = 555,917.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.