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Finding the Fourth Proportional to 721.04, 1,079.26 and 597.11

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Solution

The fourth proportional to 721.04, 1,079.26 and 597.11 is: 893.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    721.04 : 1,079.26 = 597.11 : x
  2. Step 2: Convert to fraction form
    721.04/1,079.26 = 597.11/x
  3. Step 3: Cross multiply
    721.04x = 1,079.26 × 597.11
  4. Step 4: Simplify right side
    721.04x = 644,430.05
  5. Step 5: Solve for x
    x = 644,430.05/721.04
  6. Step 6: Final answer
    x = 893.76

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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.