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Finding the Fourth Proportional to 625,693.14, 938,539.69 and 288,634.07

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Solution

The fourth proportional to 625,693.14, 938,539.69 and 288,634.07 is: 432,951.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,693.14 : 938,539.69 = 288,634.07 : x
  2. Step 2: Convert to fraction form
    625,693.14/938,539.69 = 288,634.07/x
  3. Step 3: Cross multiply
    625,693.14x = 938,539.69 × 288,634.07
  4. Step 4: Simplify right side
    625,693.14x = 270,894,529,138.07
  5. Step 5: Solve for x
    x = 270,894,529,138.07/625,693.14
  6. Step 6: Final answer
    x = 432,951.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.