Home / 1,138,820.74-1,571,591.30-679,975.43

Finding the Fourth Proportional to 1,138,820.74, 1,571,591.30 and 679,975.43

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Solution

The fourth proportional to 1,138,820.74, 1,571,591.30 and 679,975.43 is: 938,377.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,820.74 : 1,571,591.30 = 679,975.43 : x
  2. Step 2: Convert to fraction form
    1,138,820.74/1,571,591.30 = 679,975.43/x
  3. Step 3: Cross multiply
    1,138,820.74x = 1,571,591.30 × 679,975.43
  4. Step 4: Simplify right side
    1,138,820.74x = 1,068,643,458,743.93
  5. Step 5: Solve for x
    x = 1,068,643,458,743.93/1,138,820.74
  6. Step 6: Final answer
    x = 938,377.24

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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.