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Finding the Fourth Proportional to 542,703.62, 748,841.28 and 300,947.78

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Solution

The fourth proportional to 542,703.62, 748,841.28 and 300,947.78 is: 415,258.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,703.62 : 748,841.28 = 300,947.78 : x
  2. Step 2: Convert to fraction form
    542,703.62/748,841.28 = 300,947.78/x
  3. Step 3: Cross multiply
    542,703.62x = 748,841.28 × 300,947.78
  4. Step 4: Simplify right side
    542,703.62x = 225,362,120,788.36
  5. Step 5: Solve for x
    x = 225,362,120,788.36/542,703.62
  6. Step 6: Final answer
    x = 415,258.19

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1.5x scale

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.