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Finding the Fourth Proportional to 721.01, 993.98 and 610.04

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Solution

The fourth proportional to 721.01, 993.98 and 610.04 is: 841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    721.01 : 993.98 = 610.04 : x
  2. Step 2: Convert to fraction form
    721.01/993.98 = 610.04/x
  3. Step 3: Cross multiply
    721.01x = 993.98 × 610.04
  4. Step 4: Simplify right side
    721.01x = 606,367.56
  5. Step 5: Solve for x
    x = 606,367.56/721.01
  6. Step 6: Final answer
    x = 841.00

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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.