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Finding the Fourth Proportional to 674.64, 1,006.42 and 601.76

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Solution

The fourth proportional to 674.64, 1,006.42 and 601.76 is: 897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.64 : 1,006.42 = 601.76 : x
  2. Step 2: Convert to fraction form
    674.64/1,006.42 = 601.76/x
  3. Step 3: Cross multiply
    674.64x = 1,006.42 × 601.76
  4. Step 4: Simplify right side
    674.64x = 605,623.30
  5. Step 5: Solve for x
    x = 605,623.30/674.64
  6. Step 6: Final answer
    x = 897.70

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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.