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Finding the Fourth Proportional to 562.85, 773.75 and 483.87

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Solution

The fourth proportional to 562.85, 773.75 and 483.87 is: 665.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    562.85 : 773.75 = 483.87 : x
  2. Step 2: Convert to fraction form
    562.85/773.75 = 483.87/x
  3. Step 3: Cross multiply
    562.85x = 773.75 × 483.87
  4. Step 4: Simplify right side
    562.85x = 374,398.52
  5. Step 5: Solve for x
    x = 374,398.52/562.85
  6. Step 6: Final answer
    x = 665.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.