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Finding the Fourth Proportional to 836.04, 1,252.98 and 631.92

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Solution

The fourth proportional to 836.04, 1,252.98 and 631.92 is: 947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    836.04 : 1,252.98 = 631.92 : x
  2. Step 2: Convert to fraction form
    836.04/1,252.98 = 631.92/x
  3. Step 3: Cross multiply
    836.04x = 1,252.98 × 631.92
  4. Step 4: Simplify right side
    836.04x = 791,783.12
  5. Step 5: Solve for x
    x = 791,783.12/836.04
  6. Step 6: Final answer
    x = 947.06

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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.