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Finding the Fourth Proportional to 625,243.84, 862,739 and 370,553.92

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Solution

The fourth proportional to 625,243.84, 862,739 and 370,553.92 is: 511,306.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,243.84 : 862,739 = 370,553.92 : x
  2. Step 2: Convert to fraction form
    625,243.84/862,739 = 370,553.92/x
  3. Step 3: Cross multiply
    625,243.84x = 862,739 × 370,553.92
  4. Step 4: Simplify right side
    625,243.84x = 319,691,318,386.88
  5. Step 5: Solve for x
    x = 319,691,318,386.88/625,243.84
  6. Step 6: Final answer
    x = 511,306.63

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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.