Home / 1,222,504.97-1,687,063.34-763,885.69

Finding the Fourth Proportional to 1,222,504.97, 1,687,063.34 and 763,885.69

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Solution

The fourth proportional to 1,222,504.97, 1,687,063.34 and 763,885.69 is: 1,054,166.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,504.97 : 1,687,063.34 = 763,885.69 : x
  2. Step 2: Convert to fraction form
    1,222,504.97/1,687,063.34 = 763,885.69/x
  3. Step 3: Cross multiply
    1,222,504.97x = 1,687,063.34 × 763,885.69
  4. Step 4: Simplify right side
    1,222,504.97x = 1,288,723,535,114.29
  5. Step 5: Solve for x
    x = 1,288,723,535,114.29/1,222,504.97
  6. Step 6: Final answer
    x = 1,054,166.30

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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.