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Finding the Fourth Proportional to 542,490.03, 748,634.91 and 300,766.41

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Solution

The fourth proportional to 542,490.03, 748,634.91 and 300,766.41 is: 415,056.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,490.03 : 748,634.91 = 300,766.41 : x
  2. Step 2: Convert to fraction form
    542,490.03/748,634.91 = 300,766.41/x
  3. Step 3: Cross multiply
    542,490.03x = 748,634.91 × 300,766.41
  4. Step 4: Simplify right side
    542,490.03x = 225,164,234,281.37
  5. Step 5: Solve for x
    x = 225,164,234,281.37/542,490.03
  6. Step 6: Final answer
    x = 415,056.91

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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.