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Finding the Fourth Proportional to 722.13, 995.51 and 473.36

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Solution

The fourth proportional to 722.13, 995.51 and 473.36 is: 652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.13 : 995.51 = 473.36 : x
  2. Step 2: Convert to fraction form
    722.13/995.51 = 473.36/x
  3. Step 3: Cross multiply
    722.13x = 995.51 × 473.36
  4. Step 4: Simplify right side
    722.13x = 471,227.27
  5. Step 5: Solve for x
    x = 471,227.27/722.13
  6. Step 6: Final answer
    x = 652.55

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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.