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Finding the Fourth Proportional to 1,044.40, 1,565.70 and 633.10

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Solution

The fourth proportional to 1,044.40, 1,565.70 and 633.10 is: 949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,044.40 : 1,565.70 = 633.10 : x
  2. Step 2: Convert to fraction form
    1,044.40/1,565.70 = 633.10/x
  3. Step 3: Cross multiply
    1,044.40x = 1,565.70 × 633.10
  4. Step 4: Simplify right side
    1,044.40x = 991,244.67
  5. Step 5: Solve for x
    x = 991,244.67/1,044.40
  6. Step 6: Final answer
    x = 949.10

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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.