Home / 728,877.80-1,093,632.44-391,524.81

Finding the Fourth Proportional to 728,877.80, 1,093,632.44 and 391,524.81

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Solution

The fourth proportional to 728,877.80, 1,093,632.44 and 391,524.81 is: 587,456.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,877.80 : 1,093,632.44 = 391,524.81 : x
  2. Step 2: Convert to fraction form
    728,877.80/1,093,632.44 = 391,524.81/x
  3. Step 3: Cross multiply
    728,877.80x = 1,093,632.44 × 391,524.81
  4. Step 4: Simplify right side
    728,877.80x = 428,184,231,323.21
  5. Step 5: Solve for x
    x = 428,184,231,323.21/728,877.80
  6. Step 6: Final answer
    x = 587,456.82

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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.