Home / 2,187,003.80-3,280,505.70-1,287,522.20

Finding the Fourth Proportional to 2,187,003.80, 3,280,505.70 and 1,287,522.20

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Solution

The fourth proportional to 2,187,003.80, 3,280,505.70 and 1,287,522.20 is: 1,931,283.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,003.80 : 3,280,505.70 = 1,287,522.20 : x
  2. Step 2: Convert to fraction form
    2,187,003.80/3,280,505.70 = 1,287,522.20/x
  3. Step 3: Cross multiply
    2,187,003.80x = 3,280,505.70 × 1,287,522.20
  4. Step 4: Simplify right side
    2,187,003.80x = 4,223,723,915,976.54
  5. Step 5: Solve for x
    x = 4,223,723,915,976.54/2,187,003.80
  6. Step 6: Final answer
    x = 1,931,283.30

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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.