Home / 1,328,720.20-1,993,080.30-1,276,232.20

Finding the Fourth Proportional to 1,328,720.20, 1,993,080.30 and 1,276,232.20

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Solution

The fourth proportional to 1,328,720.20, 1,993,080.30 and 1,276,232.20 is: 1,914,348.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,720.20 : 1,993,080.30 = 1,276,232.20 : x
  2. Step 2: Convert to fraction form
    1,328,720.20/1,993,080.30 = 1,276,232.20/x
  3. Step 3: Cross multiply
    1,328,720.20x = 1,993,080.30 × 1,276,232.20
  4. Step 4: Simplify right side
    1,328,720.20x = 2,543,633,256,045.66
  5. Step 5: Solve for x
    x = 2,543,633,256,045.66/1,328,720.20
  6. Step 6: Final answer
    x = 1,914,348.30

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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.