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Finding the Fourth Proportional to 1,022.61, 1,534.43 and 560.61

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Solution

The fourth proportional to 1,022.61, 1,534.43 and 560.61 is: 841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.61 : 1,534.43 = 560.61 : x
  2. Step 2: Convert to fraction form
    1,022.61/1,534.43 = 560.61/x
  3. Step 3: Cross multiply
    1,022.61x = 1,534.43 × 560.61
  4. Step 4: Simplify right side
    1,022.61x = 860,216.80
  5. Step 5: Solve for x
    x = 860,216.80/1,022.61
  6. Step 6: Final answer
    x = 841.20

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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.