Home / 2,080,292.80-3,120,439.20-817,470.40

Finding the Fourth Proportional to 2,080,292.80, 3,120,439.20 and 817,470.40

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Solution

The fourth proportional to 2,080,292.80, 3,120,439.20 and 817,470.40 is: 1,226,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,292.80 : 3,120,439.20 = 817,470.40 : x
  2. Step 2: Convert to fraction form
    2,080,292.80/3,120,439.20 = 817,470.40/x
  3. Step 3: Cross multiply
    2,080,292.80x = 3,120,439.20 × 817,470.40
  4. Step 4: Simplify right side
    2,080,292.80x = 2,550,866,680,999.68
  5. Step 5: Solve for x
    x = 2,550,866,680,999.68/2,080,292.80
  6. Step 6: Final answer
    x = 1,226,205.60

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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.