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Finding the Fourth Proportional to 838.50, 1,257.61 and 594.29

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Solution

The fourth proportional to 838.50, 1,257.61 and 594.29 is: 891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    838.50 : 1,257.61 = 594.29 : x
  2. Step 2: Convert to fraction form
    838.50/1,257.61 = 594.29/x
  3. Step 3: Cross multiply
    838.50x = 1,257.61 × 594.29
  4. Step 4: Simplify right side
    838.50x = 747,385.05
  5. Step 5: Solve for x
    x = 747,385.05/838.50
  6. Step 6: Final answer
    x = 891.34

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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.