Home / 681,028.80-1,021,543.20-432,811.20

Finding the Fourth Proportional to 681,028.80, 1,021,543.20 and 432,811.20

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Solution

The fourth proportional to 681,028.80, 1,021,543.20 and 432,811.20 is: 649,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,028.80 : 1,021,543.20 = 432,811.20 : x
  2. Step 2: Convert to fraction form
    681,028.80/1,021,543.20 = 432,811.20/x
  3. Step 3: Cross multiply
    681,028.80x = 1,021,543.20 × 432,811.20
  4. Step 4: Simplify right side
    681,028.80x = 442,135,338,243.84
  5. Step 5: Solve for x
    x = 442,135,338,243.84/681,028.80
  6. Step 6: Final answer
    x = 649,216.80

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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.