Home / 1,150,981.08-1,589,356.82-721,998.60

Finding the Fourth Proportional to 1,150,981.08, 1,589,356.82 and 721,998.60

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Solution

The fourth proportional to 1,150,981.08, 1,589,356.82 and 721,998.60 is: 996,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,150,981.08 : 1,589,356.82 = 721,998.60 : x
  2. Step 2: Convert to fraction form
    1,150,981.08/1,589,356.82 = 721,998.60/x
  3. Step 3: Cross multiply
    1,150,981.08x = 1,589,356.82 × 721,998.60
  4. Step 4: Simplify right side
    1,150,981.08x = 1,147,513,398,940.45
  5. Step 5: Solve for x
    x = 1,147,513,398,940.45/1,150,981.08
  6. Step 6: Final answer
    x = 996,987.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.