Home / 1,252,988.12-1,729,109.22-680,028.68

Finding the Fourth Proportional to 1,252,988.12, 1,729,109.22 and 680,028.68

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Solution

The fourth proportional to 1,252,988.12, 1,729,109.22 and 680,028.68 is: 938,431.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,252,988.12 : 1,729,109.22 = 680,028.68 : x
  2. Step 2: Convert to fraction form
    1,252,988.12/1,729,109.22 = 680,028.68/x
  3. Step 3: Cross multiply
    1,252,988.12x = 1,729,109.22 × 680,028.68
  4. Step 4: Simplify right side
    1,252,988.12x = 1,175,843,860,452.43
  5. Step 5: Solve for x
    x = 1,175,843,860,452.43/1,252,988.12
  6. Step 6: Final answer
    x = 938,431.77

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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.