Home / 1,438,869.90-1,985,640.82-794,290.54

Finding the Fourth Proportional to 1,438,869.90, 1,985,640.82 and 794,290.54

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Solution

The fourth proportional to 1,438,869.90, 1,985,640.82 and 794,290.54 is: 1,096,121.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,869.90 : 1,985,640.82 = 794,290.54 : x
  2. Step 2: Convert to fraction form
    1,438,869.90/1,985,640.82 = 794,290.54/x
  3. Step 3: Cross multiply
    1,438,869.90x = 1,985,640.82 × 794,290.54
  4. Step 4: Simplify right side
    1,438,869.90x = 1,577,175,719,163.84
  5. Step 5: Solve for x
    x = 1,577,175,719,163.84/1,438,869.90
  6. Step 6: Final answer
    x = 1,096,121.14

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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.