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Finding the Fourth Proportional to 532.81, 798.96 and 491.77

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Solution

The fourth proportional to 532.81, 798.96 and 491.77 is: 737.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.81 : 798.96 = 491.77 : x
  2. Step 2: Convert to fraction form
    532.81/798.96 = 491.77/x
  3. Step 3: Cross multiply
    532.81x = 798.96 × 491.77
  4. Step 4: Simplify right side
    532.81x = 392,904.56
  5. Step 5: Solve for x
    x = 392,904.56/532.81
  6. Step 6: Final answer
    x = 737.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.