Home / 1,272,391.33-1,755,855.51-699,427.40

Finding the Fourth Proportional to 1,272,391.33, 1,755,855.51 and 699,427.40

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Solution

The fourth proportional to 1,272,391.33, 1,755,855.51 and 699,427.40 is: 965,185.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,391.33 : 1,755,855.51 = 699,427.40 : x
  2. Step 2: Convert to fraction form
    1,272,391.33/1,755,855.51 = 699,427.40/x
  3. Step 3: Cross multiply
    1,272,391.33x = 1,755,855.51 × 699,427.40
  4. Step 4: Simplify right side
    1,272,391.33x = 1,228,093,454,134.97
  5. Step 5: Solve for x
    x = 1,228,093,454,134.97/1,272,391.33
  6. Step 6: Final answer
    x = 965,185.34

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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.