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Finding the Fourth Proportional to 560.05, 771.19 and 461.64

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Solution

The fourth proportional to 560.05, 771.19 and 461.64 is: 635.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.05 : 771.19 = 461.64 : x
  2. Step 2: Convert to fraction form
    560.05/771.19 = 461.64/x
  3. Step 3: Cross multiply
    560.05x = 771.19 × 461.64
  4. Step 4: Simplify right side
    560.05x = 356,012.15
  5. Step 5: Solve for x
    x = 356,012.15/560.05
  6. Step 6: Final answer
    x = 635.68

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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.