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Finding the Fourth Proportional to 650.61, 972.40 and 598.72

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Solution

The fourth proportional to 650.61, 972.40 and 598.72 is: 894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    650.61 : 972.40 = 598.72 : x
  2. Step 2: Convert to fraction form
    650.61/972.40 = 598.72/x
  3. Step 3: Cross multiply
    650.61x = 972.40 × 598.72
  4. Step 4: Simplify right side
    650.61x = 582,195.33
  5. Step 5: Solve for x
    x = 582,195.33/650.61
  6. Step 6: Final answer
    x = 894.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.