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Finding the Fourth Proportional to 542,405.52, 748,564.34 and 300,763.89

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Solution

The fourth proportional to 542,405.52, 748,564.34 and 300,763.89 is: 415,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,405.52 : 748,564.34 = 300,763.89 : x
  2. Step 2: Convert to fraction form
    542,405.52/748,564.34 = 300,763.89/x
  3. Step 3: Cross multiply
    542,405.52x = 748,564.34 × 300,763.89
  4. Step 4: Simplify right side
    542,405.52x = 225,141,121,309.86
  5. Step 5: Solve for x
    x = 225,141,121,309.86/542,405.52
  6. Step 6: Final answer
    x = 415,078.96

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