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Finding the Fourth Proportional to 659,051.20, 986,503.20 and 472,427.20

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Solution

The fourth proportional to 659,051.20, 986,503.20 and 472,427.20 is: 707,154.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,051.20 : 986,503.20 = 472,427.20 : x
  2. Step 2: Convert to fraction form
    659,051.20/986,503.20 = 472,427.20/x
  3. Step 3: Cross multiply
    659,051.20x = 986,503.20 × 472,427.20
  4. Step 4: Simplify right side
    659,051.20x = 466,050,944,567.04
  5. Step 5: Solve for x
    x = 466,050,944,567.04/659,051.20
  6. Step 6: Final answer
    x = 707,154.38

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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.