Home / 1,320,007.80-1,821,612.78-716,397.24

Finding the Fourth Proportional to 1,320,007.80, 1,821,612.78 and 716,397.24

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Solution

The fourth proportional to 1,320,007.80, 1,821,612.78 and 716,397.24 is: 988,629.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,007.80 : 1,821,612.78 = 716,397.24 : x
  2. Step 2: Convert to fraction form
    1,320,007.80/1,821,612.78 = 716,397.24/x
  3. Step 3: Cross multiply
    1,320,007.80x = 1,821,612.78 × 716,397.24
  4. Step 4: Simplify right side
    1,320,007.80x = 1,304,998,367,940.73
  5. Step 5: Solve for x
    x = 1,304,998,367,940.73/1,320,007.80
  6. Step 6: Final answer
    x = 988,629.29

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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.