Home / 550,921.20-826,381.80-457,609.20

Finding the Fourth Proportional to 550,921.20, 826,381.80 and 457,609.20

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Solution

The fourth proportional to 550,921.20, 826,381.80 and 457,609.20 is: 686,413.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,921.20 : 826,381.80 = 457,609.20 : x
  2. Step 2: Convert to fraction form
    550,921.20/826,381.80 = 457,609.20/x
  3. Step 3: Cross multiply
    550,921.20x = 826,381.80 × 457,609.20
  4. Step 4: Simplify right side
    550,921.20x = 378,159,914,392.56
  5. Step 5: Solve for x
    x = 378,159,914,392.56/550,921.20
  6. Step 6: Final answer
    x = 686,413.80

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.