Home / 3,915,805.19-5,873,990.89-1,639,039.78

Finding the Fourth Proportional to 3,915,805.19, 5,873,990.89 and 1,639,039.78

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Solution

The fourth proportional to 3,915,805.19, 5,873,990.89 and 1,639,039.78 is: 2,458,678.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,915,805.19 : 5,873,990.89 = 1,639,039.78 : x
  2. Step 2: Convert to fraction form
    3,915,805.19/5,873,990.89 = 1,639,039.78/x
  3. Step 3: Cross multiply
    3,915,805.19x = 5,873,990.89 × 1,639,039.78
  4. Step 4: Simplify right side
    3,915,805.19x = 9,627,704,698,502.45
  5. Step 5: Solve for x
    x = 9,627,704,698,502.45/3,915,805.19
  6. Step 6: Final answer
    x = 2,458,678.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.