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Finding the Fourth Proportional to 542,551.92, 748,730.63 and 300,844.68

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Solution

The fourth proportional to 542,551.92, 748,730.63 and 300,844.68 is: 415,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,551.92 : 748,730.63 = 300,844.68 : x
  2. Step 2: Convert to fraction form
    542,551.92/748,730.63 = 300,844.68/x
  3. Step 3: Cross multiply
    542,551.92x = 748,730.63 × 300,844.68
  4. Step 4: Simplify right side
    542,551.92x = 225,251,627,540.66
  5. Step 5: Solve for x
    x = 225,251,627,540.66/542,551.92
  6. Step 6: Final answer
    x = 415,170.64

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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.