Home / 3,120,140.20-4,680,647.70-1,226,441.20

Finding the Fourth Proportional to 3,120,140.20, 4,680,647.70 and 1,226,441.20

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Solution

The fourth proportional to 3,120,140.20, 4,680,647.70 and 1,226,441.20 is: 1,839,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,140.20 : 4,680,647.70 = 1,226,441.20 : x
  2. Step 2: Convert to fraction form
    3,120,140.20/4,680,647.70 = 1,226,441.20/x
  3. Step 3: Cross multiply
    3,120,140.20x = 4,680,647.70 × 1,226,441.20
  4. Step 4: Simplify right side
    3,120,140.20x = 5,740,539,181,965.24
  5. Step 5: Solve for x
    x = 5,740,539,181,965.24/3,120,140.20
  6. Step 6: Final answer
    x = 1,839,833.73

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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.