Home / 2,140,437.74-3,206,378.46-1,287,042.12

Finding the Fourth Proportional to 2,140,437.74, 3,206,378.46 and 1,287,042.12

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Solution

The fourth proportional to 2,140,437.74, 3,206,378.46 and 1,287,042.12 is: 1,927,990.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,437.74 : 3,206,378.46 = 1,287,042.12 : x
  2. Step 2: Convert to fraction form
    2,140,437.74/3,206,378.46 = 1,287,042.12/x
  3. Step 3: Cross multiply
    2,140,437.74x = 3,206,378.46 × 1,287,042.12
  4. Step 4: Simplify right side
    2,140,437.74x = 4,126,744,130,680.74
  5. Step 5: Solve for x
    x = 4,126,744,130,680.74/2,140,437.74
  6. Step 6: Final answer
    x = 1,927,990.73

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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.