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Finding the Fourth Proportional to 560.61, 772.65 and 461.25

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Solution

The fourth proportional to 560.61, 772.65 and 461.25 is: 635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.61 : 772.65 = 461.25 : x
  2. Step 2: Convert to fraction form
    560.61/772.65 = 461.25/x
  3. Step 3: Cross multiply
    560.61x = 772.65 × 461.25
  4. Step 4: Simplify right side
    560.61x = 356,384.81
  5. Step 5: Solve for x
    x = 356,384.81/560.61
  6. Step 6: Final answer
    x = 635.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.