Home / 1,391,034.71-1,923,854.06-1,247,742.47

Finding the Fourth Proportional to 1,391,034.71, 1,923,854.06 and 1,247,742.47

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Solution

The fourth proportional to 1,391,034.71, 1,923,854.06 and 1,247,742.47 is: 1,725,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,034.71 : 1,923,854.06 = 1,247,742.47 : x
  2. Step 2: Convert to fraction form
    1,391,034.71/1,923,854.06 = 1,247,742.47/x
  3. Step 3: Cross multiply
    1,391,034.71x = 1,923,854.06 × 1,247,742.47
  4. Step 4: Simplify right side
    1,391,034.71x = 2,400,474,400,885.95
  5. Step 5: Solve for x
    x = 2,400,474,400,885.95/1,391,034.71
  6. Step 6: Final answer
    x = 1,725,675.42

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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.