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Finding the Fourth Proportional to 560.43, 835.35 and 518.88

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Solution

The fourth proportional to 560.43, 835.35 and 518.88 is: 773.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.43 : 835.35 = 518.88 : x
  2. Step 2: Convert to fraction form
    560.43/835.35 = 518.88/x
  3. Step 3: Cross multiply
    560.43x = 835.35 × 518.88
  4. Step 4: Simplify right side
    560.43x = 433,446.41
  5. Step 5: Solve for x
    x = 433,446.41/560.43
  6. Step 6: Final answer
    x = 773.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.