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Finding the Fourth Proportional to 836.91, 1,154.84 and 463.88

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Solution

The fourth proportional to 836.91, 1,154.84 and 463.88 is: 640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.91 : 1,154.84 = 463.88 : x
  2. Step 2: Convert to fraction form
    836.91/1,154.84 = 463.88/x
  3. Step 3: Cross multiply
    836.91x = 1,154.84 × 463.88
  4. Step 4: Simplify right side
    836.91x = 535,699.09
  5. Step 5: Solve for x
    x = 535,699.09/836.91
  6. Step 6: Final answer
    x = 640.10

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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.