Home / 3,120,401.20-4,680,601.80-876,539.20

Finding the Fourth Proportional to 3,120,401.20, 4,680,601.80 and 876,539.20

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Solution

The fourth proportional to 3,120,401.20, 4,680,601.80 and 876,539.20 is: 1,314,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,401.20 : 4,680,601.80 = 876,539.20 : x
  2. Step 2: Convert to fraction form
    3,120,401.20/4,680,601.80 = 876,539.20/x
  3. Step 3: Cross multiply
    3,120,401.20x = 4,680,601.80 × 876,539.20
  4. Step 4: Simplify right side
    3,120,401.20x = 4,102,730,957,290.56
  5. Step 5: Solve for x
    x = 4,102,730,957,290.56/3,120,401.20
  6. Step 6: Final answer
    x = 1,314,808.80

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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.