Home / 1,227,938.25-1,694,669.40-718,641.03

Finding the Fourth Proportional to 1,227,938.25, 1,694,669.40 and 718,641.03

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Solution

The fourth proportional to 1,227,938.25, 1,694,669.40 and 718,641.03 is: 991,791.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,938.25 : 1,694,669.40 = 718,641.03 : x
  2. Step 2: Convert to fraction form
    1,227,938.25/1,694,669.40 = 718,641.03/x
  3. Step 3: Cross multiply
    1,227,938.25x = 1,694,669.40 × 718,641.03
  4. Step 4: Simplify right side
    1,227,938.25x = 1,217,858,963,125.48
  5. Step 5: Solve for x
    x = 1,217,858,963,125.48/1,227,938.25
  6. Step 6: Final answer
    x = 991,791.70

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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.