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Finding the Fourth Proportional to 560.90, 838.10 and 531.74

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Solution

The fourth proportional to 560.90, 838.10 and 531.74 is: 794.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.90 : 838.10 = 531.74 : x
  2. Step 2: Convert to fraction form
    560.90/838.10 = 531.74/x
  3. Step 3: Cross multiply
    560.90x = 838.10 × 531.74
  4. Step 4: Simplify right side
    560.90x = 445,651.29
  5. Step 5: Solve for x
    x = 445,651.29/560.90
  6. Step 6: Final answer
    x = 794.53

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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.