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Finding the Fourth Proportional to 592,140.80, 888,211.20 and 488,460.80

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Solution

The fourth proportional to 592,140.80, 888,211.20 and 488,460.80 is: 732,691.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,140.80 : 888,211.20 = 488,460.80 : x
  2. Step 2: Convert to fraction form
    592,140.80/888,211.20 = 488,460.80/x
  3. Step 3: Cross multiply
    592,140.80x = 888,211.20 × 488,460.80
  4. Step 4: Simplify right side
    592,140.80x = 433,856,353,320.96
  5. Step 5: Solve for x
    x = 433,856,353,320.96/592,140.80
  6. Step 6: Final answer
    x = 732,691.20

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Double scale
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Similar ratio
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1.5x scale

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.