Home / 2,124,920.40-3,189,454.20-1,061,163.60

Finding the Fourth Proportional to 2,124,920.40, 3,189,454.20 and 1,061,163.60

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Solution

The fourth proportional to 2,124,920.40, 3,189,454.20 and 1,061,163.60 is: 1,592,780.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124,920.40 : 3,189,454.20 = 1,061,163.60 : x
  2. Step 2: Convert to fraction form
    2,124,920.40/3,189,454.20 = 1,061,163.60/x
  3. Step 3: Cross multiply
    2,124,920.40x = 3,189,454.20 × 1,061,163.60
  4. Step 4: Simplify right side
    2,124,920.40x = 3,384,532,700,907.12
  5. Step 5: Solve for x
    x = 3,384,532,700,907.12/2,124,920.40
  6. Step 6: Final answer
    x = 1,592,780.93

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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.