Home / 1,338,976.45-1,847,787.86-727,129.05

Finding the Fourth Proportional to 1,338,976.45, 1,847,787.86 and 727,129.05

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Solution

The fourth proportional to 1,338,976.45, 1,847,787.86 and 727,129.05 is: 1,003,438.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,976.45 : 1,847,787.86 = 727,129.05 : x
  2. Step 2: Convert to fraction form
    1,338,976.45/1,847,787.86 = 727,129.05/x
  3. Step 3: Cross multiply
    1,338,976.45x = 1,847,787.86 × 727,129.05
  4. Step 4: Simplify right side
    1,338,976.45x = 1,343,580,221,765.16
  5. Step 5: Solve for x
    x = 1,343,580,221,765.16/1,338,976.45
  6. Step 6: Final answer
    x = 1,003,438.28

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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.