Home / 712,000.80-1,067,655.60-396,122.40

Finding the Fourth Proportional to 712,000.80, 1,067,655.60 and 396,122.40

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Solution

The fourth proportional to 712,000.80, 1,067,655.60 and 396,122.40 is: 593,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,000.80 : 1,067,655.60 = 396,122.40 : x
  2. Step 2: Convert to fraction form
    712,000.80/1,067,655.60 = 396,122.40/x
  3. Step 3: Cross multiply
    712,000.80x = 1,067,655.60 × 396,122.40
  4. Step 4: Simplify right side
    712,000.80x = 422,922,298,645.44
  5. Step 5: Solve for x
    x = 422,922,298,645.44/712,000.80
  6. Step 6: Final answer
    x = 593,991.33

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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.