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Finding the Fourth Proportional to 654.28, 902.14 and 614.18

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Solution

The fourth proportional to 654.28, 902.14 and 614.18 is: 846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.28 : 902.14 = 614.18 : x
  2. Step 2: Convert to fraction form
    654.28/902.14 = 614.18/x
  3. Step 3: Cross multiply
    654.28x = 902.14 × 614.18
  4. Step 4: Simplify right side
    654.28x = 554,077.07
  5. Step 5: Solve for x
    x = 554,077.07/654.28
  6. Step 6: Final answer
    x = 846.85

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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.