Home / 3,179,132.32-4,387,233.73-1,728,859.09

Finding the Fourth Proportional to 3,179,132.32, 4,387,233.73 and 1,728,859.09

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Solution

The fourth proportional to 3,179,132.32, 4,387,233.73 and 1,728,859.09 is: 2,385,842.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,132.32 : 4,387,233.73 = 1,728,859.09 : x
  2. Step 2: Convert to fraction form
    3,179,132.32/4,387,233.73 = 1,728,859.09/x
  3. Step 3: Cross multiply
    3,179,132.32x = 4,387,233.73 × 1,728,859.09
  4. Step 4: Simplify right side
    3,179,132.32x = 7,584,908,914,065.11
  5. Step 5: Solve for x
    x = 7,584,908,914,065.11/3,179,132.32
  6. Step 6: Final answer
    x = 2,385,842.47

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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.