Home / 1,338,489.92-1,846,589.28-765,222.08

Finding the Fourth Proportional to 1,338,489.92, 1,846,589.28 and 765,222.08

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Solution

The fourth proportional to 1,338,489.92, 1,846,589.28 and 765,222.08 is: 1,055,705.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,489.92 : 1,846,589.28 = 765,222.08 : x
  2. Step 2: Convert to fraction form
    1,338,489.92/1,846,589.28 = 765,222.08/x
  3. Step 3: Cross multiply
    1,338,489.92x = 1,846,589.28 × 765,222.08
  4. Step 4: Simplify right side
    1,338,489.92x = 1,413,050,889,747.30
  5. Step 5: Solve for x
    x = 1,413,050,889,747.30/1,338,489.92
  6. Step 6: Final answer
    x = 1,055,705.29

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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.