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Finding the Fourth Proportional to 625,230.90, 862,807.37 and 353,292.94

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Solution

The fourth proportional to 625,230.90, 862,807.37 and 353,292.94 is: 487,537.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,230.90 : 862,807.37 = 353,292.94 : x
  2. Step 2: Convert to fraction form
    625,230.90/862,807.37 = 353,292.94/x
  3. Step 3: Cross multiply
    625,230.90x = 862,807.37 × 353,292.94
  4. Step 4: Simplify right side
    625,230.90x = 304,823,751,713.01
  5. Step 5: Solve for x
    x = 304,823,751,713.01/625,230.90
  6. Step 6: Final answer
    x = 487,537.89

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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.