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Finding the Fourth Proportional to 723, 995.22 and 545.88

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Solution

The fourth proportional to 723, 995.22 and 545.88 is: 751.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    723 : 995.22 = 545.88 : x
  2. Step 2: Convert to fraction form
    723/995.22 = 545.88/x
  3. Step 3: Cross multiply
    723x = 995.22 × 545.88
  4. Step 4: Simplify right side
    723x = 543,270.69
  5. Step 5: Solve for x
    x = 543,270.69/723
  6. Step 6: Final answer
    x = 751.41

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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.