Home / 3,120,470.20-4,680,705.30-2,946,287.80

Finding the Fourth Proportional to 3,120,470.20, 4,680,705.30 and 2,946,287.80

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Solution

The fourth proportional to 3,120,470.20, 4,680,705.30 and 2,946,287.80 is: 4,419,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,470.20 : 4,680,705.30 = 2,946,287.80 : x
  2. Step 2: Convert to fraction form
    3,120,470.20/4,680,705.30 = 2,946,287.80/x
  3. Step 3: Cross multiply
    3,120,470.20x = 4,680,705.30 × 2,946,287.80
  4. Step 4: Simplify right side
    3,120,470.20x = 13,790,704,920,785.34
  5. Step 5: Solve for x
    x = 13,790,704,920,785.34/3,120,470.20
  6. Step 6: Final answer
    x = 4,419,431.70

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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.