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Finding the Fourth Proportional to 542,489.03, 748,633.53 and 300,765.41

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Solution

The fourth proportional to 542,489.03, 748,633.53 and 300,765.41 is: 415,055.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,489.03 : 748,633.53 = 300,765.41 : x
  2. Step 2: Convert to fraction form
    542,489.03/748,633.53 = 300,765.41/x
  3. Step 3: Cross multiply
    542,489.03x = 748,633.53 × 300,765.41
  4. Step 4: Simplify right side
    542,489.03x = 225,163,070,590.20
  5. Step 5: Solve for x
    x = 225,163,070,590.20/542,489.03
  6. Step 6: Final answer
    x = 415,055.53

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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.