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Finding the Fourth Proportional to 625,659.04, 863,409.68 and 339,179.04

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Solution

The fourth proportional to 625,659.04, 863,409.68 and 339,179.04 is: 468,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,659.04 : 863,409.68 = 339,179.04 : x
  2. Step 2: Convert to fraction form
    625,659.04/863,409.68 = 339,179.04/x
  3. Step 3: Cross multiply
    625,659.04x = 863,409.68 × 339,179.04
  4. Step 4: Simplify right side
    625,659.04x = 292,850,466,389.11
  5. Step 5: Solve for x
    x = 292,850,466,389.11/625,659.04
  6. Step 6: Final answer
    x = 468,067.19

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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.