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Finding the Fourth Proportional to 625,412.46, 863,069.93 and 338,932.54

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Solution

The fourth proportional to 625,412.46, 863,069.93 and 338,932.54 is: 467,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,412.46 : 863,069.93 = 338,932.54 : x
  2. Step 2: Convert to fraction form
    625,412.46/863,069.93 = 338,932.54/x
  3. Step 3: Cross multiply
    625,412.46x = 863,069.93 × 338,932.54
  4. Step 4: Simplify right side
    625,412.46x = 292,522,483,572.52
  5. Step 5: Solve for x
    x = 292,522,483,572.52/625,412.46
  6. Step 6: Final answer
    x = 467,727.30

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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.