Home / 1,295,610.75-1,787,937.78-714,870

Finding the Fourth Proportional to 1,295,610.75, 1,787,937.78 and 714,870

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Solution

The fourth proportional to 1,295,610.75, 1,787,937.78 and 714,870 is: 986,517.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,610.75 : 1,787,937.78 = 714,870 : x
  2. Step 2: Convert to fraction form
    1,295,610.75/1,787,937.78 = 714,870/x
  3. Step 3: Cross multiply
    1,295,610.75x = 1,787,937.78 × 714,870
  4. Step 4: Simplify right side
    1,295,610.75x = 1,278,143,080,788.60
  5. Step 5: Solve for x
    x = 1,278,143,080,788.60/1,295,610.75
  6. Step 6: Final answer
    x = 986,517.81

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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.