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Finding the Fourth Proportional to 529.71, 790.89 and 496.91

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Solution

The fourth proportional to 529.71, 790.89 and 496.91 is: 741.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.71 : 790.89 = 496.91 : x
  2. Step 2: Convert to fraction form
    529.71/790.89 = 496.91/x
  3. Step 3: Cross multiply
    529.71x = 790.89 × 496.91
  4. Step 4: Simplify right side
    529.71x = 392,997.20
  5. Step 5: Solve for x
    x = 392,997.20/529.71
  6. Step 6: Final answer
    x = 741.91

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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.