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Finding the Fourth Proportional to 560.13, 771.98 and 429.45

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Solution

The fourth proportional to 560.13, 771.98 and 429.45 is: 591.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.13 : 771.98 = 429.45 : x
  2. Step 2: Convert to fraction form
    560.13/771.98 = 429.45/x
  3. Step 3: Cross multiply
    560.13x = 771.98 × 429.45
  4. Step 4: Simplify right side
    560.13x = 331,524.66
  5. Step 5: Solve for x
    x = 331,524.66/560.13
  6. Step 6: Final answer
    x = 591.87

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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.