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Finding the Fourth Proportional to 798.32, 1,195.32 and 614.24

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Solution

The fourth proportional to 798.32, 1,195.32 and 614.24 is: 919.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    798.32 : 1,195.32 = 614.24 : x
  2. Step 2: Convert to fraction form
    798.32/1,195.32 = 614.24/x
  3. Step 3: Cross multiply
    798.32x = 1,195.32 × 614.24
  4. Step 4: Simplify right side
    798.32x = 734,213.36
  5. Step 5: Solve for x
    x = 734,213.36/798.32
  6. Step 6: Final answer
    x = 919.70

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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.