Home / 1,288,171.14-1,777,731.66-715,211.25

Finding the Fourth Proportional to 1,288,171.14, 1,777,731.66 and 715,211.25

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Solution

The fourth proportional to 1,288,171.14, 1,777,731.66 and 715,211.25 is: 987,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,171.14 : 1,777,731.66 = 715,211.25 : x
  2. Step 2: Convert to fraction form
    1,288,171.14/1,777,731.66 = 715,211.25/x
  3. Step 3: Cross multiply
    1,288,171.14x = 1,777,731.66 × 715,211.25
  4. Step 4: Simplify right side
    1,288,171.14x = 1,271,453,682,713.18
  5. Step 5: Solve for x
    x = 1,271,453,682,713.18/1,288,171.14
  6. Step 6: Final answer
    x = 987,022.33

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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.