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Finding the Fourth Proportional to 834.88, 1,250.50 and 469.48

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Solution

The fourth proportional to 834.88, 1,250.50 and 469.48 is: 703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    834.88 : 1,250.50 = 469.48 : x
  2. Step 2: Convert to fraction form
    834.88/1,250.50 = 469.48/x
  3. Step 3: Cross multiply
    834.88x = 1,250.50 × 469.48
  4. Step 4: Simplify right side
    834.88x = 587,084.74
  5. Step 5: Solve for x
    x = 587,084.74/834.88
  6. Step 6: Final answer
    x = 703.20

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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.