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Finding the Fourth Proportional to 560.52, 774.54 and 488.34

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Solution

The fourth proportional to 560.52, 774.54 and 488.34 is: 674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    560.52 : 774.54 = 488.34 : x
  2. Step 2: Convert to fraction form
    560.52/774.54 = 488.34/x
  3. Step 3: Cross multiply
    560.52x = 774.54 × 488.34
  4. Step 4: Simplify right side
    560.52x = 378,238.86
  5. Step 5: Solve for x
    x = 378,238.86/560.52
  6. Step 6: Final answer
    x = 674.80

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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.