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Finding the Fourth Proportional to 526.71, 793.38 and 494.31

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Solution

The fourth proportional to 526.71, 793.38 and 494.31 is: 744.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.71 : 793.38 = 494.31 : x
  2. Step 2: Convert to fraction form
    526.71/793.38 = 494.31/x
  3. Step 3: Cross multiply
    526.71x = 793.38 × 494.31
  4. Step 4: Simplify right side
    526.71x = 392,175.67
  5. Step 5: Solve for x
    x = 392,175.67/526.71
  6. Step 6: Final answer
    x = 744.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.