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Finding the Fourth Proportional to 671.24, 927 and 503.60

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Solution

The fourth proportional to 671.24, 927 and 503.60 is: 695.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    671.24 : 927 = 503.60 : x
  2. Step 2: Convert to fraction form
    671.24/927 = 503.60/x
  3. Step 3: Cross multiply
    671.24x = 927 × 503.60
  4. Step 4: Simplify right side
    671.24x = 466,837.20
  5. Step 5: Solve for x
    x = 466,837.20/671.24
  6. Step 6: Final answer
    x = 695.48

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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.