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Finding the Fourth Proportional to 518.01, 772.22 and 479.13

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Solution

The fourth proportional to 518.01, 772.22 and 479.13 is: 714.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    518.01 : 772.22 = 479.13 : x
  2. Step 2: Convert to fraction form
    518.01/772.22 = 479.13/x
  3. Step 3: Cross multiply
    518.01x = 772.22 × 479.13
  4. Step 4: Simplify right side
    518.01x = 369,991.37
  5. Step 5: Solve for x
    x = 369,991.37/518.01
  6. Step 6: Final answer
    x = 714.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.