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Finding the Fourth Proportional to 488,125.70, 656,870.17 and 488,125.70

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Solution

The fourth proportional to 488,125.70, 656,870.17 and 488,125.70 is: 656,870.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,125.70 : 656,870.17 = 488,125.70 : x
  2. Step 2: Convert to fraction form
    488,125.70/656,870.17 = 488,125.70/x
  3. Step 3: Cross multiply
    488,125.70x = 656,870.17 × 488,125.70
  4. Step 4: Simplify right side
    488,125.70x = 320,635,211,540.37
  5. Step 5: Solve for x
    x = 320,635,211,540.37/488,125.70
  6. Step 6: Final answer
    x = 656,870.17

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.