Home / 781.03-1,170.73-588.25

Finding the Fourth Proportional to 781.03, 1,170.73 and 588.25

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Solution

The fourth proportional to 781.03, 1,170.73 and 588.25 is: 881.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    781.03 : 1,170.73 = 588.25 : x
  2. Step 2: Convert to fraction form
    781.03/1,170.73 = 588.25/x
  3. Step 3: Cross multiply
    781.03x = 1,170.73 × 588.25
  4. Step 4: Simplify right side
    781.03x = 688,681.92
  5. Step 5: Solve for x
    x = 688,681.92/781.03
  6. Step 6: Final answer
    x = 881.76

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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.