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Finding the Fourth Proportional to 974.24, 1,344.16 and 601.52

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Solution

The fourth proportional to 974.24, 1,344.16 and 601.52 is: 829.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.24 : 1,344.16 = 601.52 : x
  2. Step 2: Convert to fraction form
    974.24/1,344.16 = 601.52/x
  3. Step 3: Cross multiply
    974.24x = 1,344.16 × 601.52
  4. Step 4: Simplify right side
    974.24x = 808,539.12
  5. Step 5: Solve for x
    x = 808,539.12/974.24
  6. Step 6: Final answer
    x = 829.92

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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.