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Finding the Fourth Proportional to 718.88, 1,078.23 and 597.92

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Solution

The fourth proportional to 718.88, 1,078.23 and 597.92 is: 896.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    718.88 : 1,078.23 = 597.92 : x
  2. Step 2: Convert to fraction form
    718.88/1,078.23 = 597.92/x
  3. Step 3: Cross multiply
    718.88x = 1,078.23 × 597.92
  4. Step 4: Simplify right side
    718.88x = 644,695.28
  5. Step 5: Solve for x
    x = 644,695.28/718.88
  6. Step 6: Final answer
    x = 896.81

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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.