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Finding the Fourth Proportional to 1,259,799.95, 1,738,449.01 and 715,860.25

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Solution

The fourth proportional to 1,259,799.95, 1,738,449.01 and 715,860.25 is: 987,844.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,799.95 : 1,738,449.01 = 715,860.25 : x
  2. Step 2: Convert to fraction form
    1,259,799.95/1,738,449.01 = 715,860.25/x
  3. Step 3: Cross multiply
    1,259,799.95x = 1,738,449.01 × 715,860.25
  4. Step 4: Simplify right side
    1,259,799.95x = 1,244,486,542,910.85
  5. Step 5: Solve for x
    x = 1,244,486,542,910.85/1,259,799.95
  6. Step 6: Final answer
    x = 987,844.57

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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.