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Finding the Fourth Proportional to 521.06, 718.24 and 410.39

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Solution

The fourth proportional to 521.06, 718.24 and 410.39 is: 565.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    521.06 : 718.24 = 410.39 : x
  2. Step 2: Convert to fraction form
    521.06/718.24 = 410.39/x
  3. Step 3: Cross multiply
    521.06x = 718.24 × 410.39
  4. Step 4: Simplify right side
    521.06x = 294,756.46
  5. Step 5: Solve for x
    x = 294,756.46/521.06
  6. Step 6: Final answer
    x = 565.69

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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.