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Finding the Fourth Proportional to 580.62, 801.24 and 347.70

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Solution

The fourth proportional to 580.62, 801.24 and 347.70 is: 479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    580.62 : 801.24 = 347.70 : x
  2. Step 2: Convert to fraction form
    580.62/801.24 = 347.70/x
  3. Step 3: Cross multiply
    580.62x = 801.24 × 347.70
  4. Step 4: Simplify right side
    580.62x = 278,591.15
  5. Step 5: Solve for x
    x = 278,591.15/580.62
  6. Step 6: Final answer
    x = 479.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.