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Finding the Fourth Proportional to 561.59, 838.12 and 524.46

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Solution

The fourth proportional to 561.59, 838.12 and 524.46 is: 782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    561.59 : 838.12 = 524.46 : x
  2. Step 2: Convert to fraction form
    561.59/838.12 = 524.46/x
  3. Step 3: Cross multiply
    561.59x = 838.12 × 524.46
  4. Step 4: Simplify right side
    561.59x = 439,560.42
  5. Step 5: Solve for x
    x = 439,560.42/561.59
  6. Step 6: Final answer
    x = 782.71

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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.