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Finding the Fourth Proportional to 488,123.70, 656,867.48 and 488,123.70

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Solution

The fourth proportional to 488,123.70, 656,867.48 and 488,123.70 is: 656,867.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,123.70 : 656,867.48 = 488,123.70 : x
  2. Step 2: Convert to fraction form
    488,123.70/656,867.48 = 488,123.70/x
  3. Step 3: Cross multiply
    488,123.70x = 656,867.48 × 488,123.70
  4. Step 4: Simplify right side
    488,123.70x = 320,632,582,306.66
  5. Step 5: Solve for x
    x = 320,632,582,306.66/488,123.70
  6. Step 6: Final answer
    x = 656,867.48

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1.5x scale

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.