Home / 2,191,151.20-3,286,726.80-772,808.80

Finding the Fourth Proportional to 2,191,151.20, 3,286,726.80 and 772,808.80

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Solution

The fourth proportional to 2,191,151.20, 3,286,726.80 and 772,808.80 is: 1,159,213.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,191,151.20 : 3,286,726.80 = 772,808.80 : x
  2. Step 2: Convert to fraction form
    2,191,151.20/3,286,726.80 = 772,808.80/x
  3. Step 3: Cross multiply
    2,191,151.20x = 3,286,726.80 × 772,808.80
  4. Step 4: Simplify right side
    2,191,151.20x = 2,540,011,394,235.84
  5. Step 5: Solve for x
    x = 2,540,011,394,235.84/2,191,151.20
  6. Step 6: Final answer
    x = 1,159,213.20

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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.