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Finding the Fourth Proportional to 542,609.80, 748,734.78 and 327,765.40

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Solution

The fourth proportional to 542,609.80, 748,734.78 and 327,765.40 is: 452,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,609.80 : 748,734.78 = 327,765.40 : x
  2. Step 2: Convert to fraction form
    542,609.80/748,734.78 = 327,765.40/x
  3. Step 3: Cross multiply
    542,609.80x = 748,734.78 × 327,765.40
  4. Step 4: Simplify right side
    542,609.80x = 245,409,354,660.61
  5. Step 5: Solve for x
    x = 245,409,354,660.61/542,609.80
  6. Step 6: Final answer
    x = 452,275.94

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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.