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Finding the Fourth Proportional to 542,487.03, 748,630.77 and 300,763.41

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Solution

The fourth proportional to 542,487.03, 748,630.77 and 300,763.41 is: 415,052.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,487.03 : 748,630.77 = 300,763.41 : x
  2. Step 2: Convert to fraction form
    542,487.03/748,630.77 = 300,763.41/x
  3. Step 3: Cross multiply
    542,487.03x = 748,630.77 × 300,763.41
  4. Step 4: Simplify right side
    542,487.03x = 225,160,743,216.13
  5. Step 5: Solve for x
    x = 225,160,743,216.13/542,487.03
  6. Step 6: Final answer
    x = 415,052.77

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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.