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Finding the Fourth Proportional to 625,139.62, 936,154.23 and 437,271.46

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Solution

The fourth proportional to 625,139.62, 936,154.23 and 437,271.46 is: 654,819.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,139.62 : 936,154.23 = 437,271.46 : x
  2. Step 2: Convert to fraction form
    625,139.62/936,154.23 = 437,271.46/x
  3. Step 3: Cross multiply
    625,139.62x = 936,154.23 × 437,271.46
  4. Step 4: Simplify right side
    625,139.62x = 409,353,526,937.28
  5. Step 5: Solve for x
    x = 409,353,526,937.28/625,139.62
  6. Step 6: Final answer
    x = 654,819.36

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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.