Home / 1,222,506.97-1,687,066.10-763,887.69

Finding the Fourth Proportional to 1,222,506.97, 1,687,066.10 and 763,887.69

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Solution

The fourth proportional to 1,222,506.97, 1,687,066.10 and 763,887.69 is: 1,054,169.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,506.97 : 1,687,066.10 = 763,887.69 : x
  2. Step 2: Convert to fraction form
    1,222,506.97/1,687,066.10 = 763,887.69/x
  3. Step 3: Cross multiply
    1,222,506.97x = 1,687,066.10 × 763,887.69
  4. Step 4: Simplify right side
    1,222,506.97x = 1,288,729,026,006.31
  5. Step 5: Solve for x
    x = 1,288,729,026,006.31/1,222,506.97
  6. Step 6: Final answer
    x = 1,054,169.06

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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.