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Finding the Fourth Proportional to 542,769.15, 748,990.89 and 301,034.37

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Solution

The fourth proportional to 542,769.15, 748,990.89 and 301,034.37 is: 415,410.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,769.15 : 748,990.89 = 301,034.37 : x
  2. Step 2: Convert to fraction form
    542,769.15/748,990.89 = 301,034.37/x
  3. Step 3: Cross multiply
    542,769.15x = 748,990.89 × 301,034.37
  4. Step 4: Simplify right side
    542,769.15x = 225,472,000,706.89
  5. Step 5: Solve for x
    x = 225,472,000,706.89/542,769.15
  6. Step 6: Final answer
    x = 415,410.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.