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Finding the Fourth Proportional to 652.26, 978.31 and 614.19

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Solution

The fourth proportional to 652.26, 978.31 and 614.19 is: 921.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    652.26 : 978.31 = 614.19 : x
  2. Step 2: Convert to fraction form
    652.26/978.31 = 614.19/x
  3. Step 3: Cross multiply
    652.26x = 978.31 × 614.19
  4. Step 4: Simplify right side
    652.26x = 600,868.22
  5. Step 5: Solve for x
    x = 600,868.22/652.26
  6. Step 6: Final answer
    x = 921.21

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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.