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Finding the Fourth Proportional to 841.68, 1,262.45 and 532.64

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Solution

The fourth proportional to 841.68, 1,262.45 and 532.64 is: 798.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    841.68 : 1,262.45 = 532.64 : x
  2. Step 2: Convert to fraction form
    841.68/1,262.45 = 532.64/x
  3. Step 3: Cross multiply
    841.68x = 1,262.45 × 532.64
  4. Step 4: Simplify right side
    841.68x = 672,435.86
  5. Step 5: Solve for x
    x = 672,435.86/841.68
  6. Step 6: Final answer
    x = 798.92

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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.