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Finding the Fourth Proportional to 592.60, 887.14 and 439.20

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Solution

The fourth proportional to 592.60, 887.14 and 439.20 is: 657.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    592.60 : 887.14 = 439.20 : x
  2. Step 2: Convert to fraction form
    592.60/887.14 = 439.20/x
  3. Step 3: Cross multiply
    592.60x = 887.14 × 439.20
  4. Step 4: Simplify right side
    592.60x = 389,631.89
  5. Step 5: Solve for x
    x = 389,631.89/592.60
  6. Step 6: Final answer
    x = 657.50

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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.