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Finding the Fourth Proportional to 625,283.29, 862,906.92 and 383,699.37

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Solution

The fourth proportional to 625,283.29, 862,906.92 and 383,699.37 is: 529,514.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,283.29 : 862,906.92 = 383,699.37 : x
  2. Step 2: Convert to fraction form
    625,283.29/862,906.92 = 383,699.37/x
  3. Step 3: Cross multiply
    625,283.29x = 862,906.92 × 383,699.37
  4. Step 4: Simplify right side
    625,283.29x = 331,096,841,572.64
  5. Step 5: Solve for x
    x = 331,096,841,572.64/625,283.29
  6. Step 6: Final answer
    x = 529,514.94

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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.