Home / 1,449,920.80-2,175,172.80-1,214,891.20

Finding the Fourth Proportional to 1,449,920.80, 2,175,172.80 and 1,214,891.20

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Solution

The fourth proportional to 1,449,920.80, 2,175,172.80 and 1,214,891.20 is: 1,822,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,920.80 : 2,175,172.80 = 1,214,891.20 : x
  2. Step 2: Convert to fraction form
    1,449,920.80/2,175,172.80 = 1,214,891.20/x
  3. Step 3: Cross multiply
    1,449,920.80x = 2,175,172.80 × 1,214,891.20
  4. Step 4: Simplify right side
    1,449,920.80x = 2,642,598,293,199.36
  5. Step 5: Solve for x
    x = 2,642,598,293,199.36/1,449,920.80
  6. Step 6: Final answer
    x = 1,822,581.13

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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.