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Finding the Fourth Proportional to 944.60, 1,410.01 and 875.11

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Solution

The fourth proportional to 944.60, 1,410.01 and 875.11 is: 1,306.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.60 : 1,410.01 = 875.11 : x
  2. Step 2: Convert to fraction form
    944.60/1,410.01 = 875.11/x
  3. Step 3: Cross multiply
    944.60x = 1,410.01 × 875.11
  4. Step 4: Simplify right side
    944.60x = 1,233,909.48
  5. Step 5: Solve for x
    x = 1,233,909.48/944.60
  6. Step 6: Final answer
    x = 1,306.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.