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Finding the Fourth Proportional to 561.29, 839.43 and 500.04

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Solution

The fourth proportional to 561.29, 839.43 and 500.04 is: 747.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.29 : 839.43 = 500.04 : x
  2. Step 2: Convert to fraction form
    561.29/839.43 = 500.04/x
  3. Step 3: Cross multiply
    561.29x = 839.43 × 500.04
  4. Step 4: Simplify right side
    561.29x = 419,748.58
  5. Step 5: Solve for x
    x = 419,748.58/561.29
  6. Step 6: Final answer
    x = 747.84

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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.