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Finding the Fourth Proportional to 657.27, 987.03 and 602.89

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Solution

The fourth proportional to 657.27, 987.03 and 602.89 is: 905.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    657.27 : 987.03 = 602.89 : x
  2. Step 2: Convert to fraction form
    657.27/987.03 = 602.89/x
  3. Step 3: Cross multiply
    657.27x = 987.03 × 602.89
  4. Step 4: Simplify right side
    657.27x = 595,068.05
  5. Step 5: Solve for x
    x = 595,068.05/657.27
  6. Step 6: Final answer
    x = 905.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.