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Finding the Fourth Proportional to 748,331, 1,122,591.88 and 343,424.96

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Solution

The fourth proportional to 748,331, 1,122,591.88 and 343,424.96 is: 515,181.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,331 : 1,122,591.88 = 343,424.96 : x
  2. Step 2: Convert to fraction form
    748,331/1,122,591.88 = 343,424.96/x
  3. Step 3: Cross multiply
    748,331x = 1,122,591.88 × 343,424.96
  4. Step 4: Simplify right side
    748,331x = 385,526,071,485.33
  5. Step 5: Solve for x
    x = 385,526,071,485.33/748,331
  6. Step 6: Final answer
    x = 515,181.21

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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.