Home / 3,179,322.36-4,387,423.59-1,728,986.92

Finding the Fourth Proportional to 3,179,322.36, 4,387,423.59 and 1,728,986.92

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Solution

The fourth proportional to 3,179,322.36, 4,387,423.59 and 1,728,986.92 is: 2,385,979.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,179,322.36 : 4,387,423.59 = 1,728,986.92 : x
  2. Step 2: Convert to fraction form
    3,179,322.36/4,387,423.59 = 1,728,986.92/x
  3. Step 3: Cross multiply
    3,179,322.36x = 4,387,423.59 × 1,728,986.92
  4. Step 4: Simplify right side
    3,179,322.36x = 7,585,797,988,640.88
  5. Step 5: Solve for x
    x = 7,585,797,988,640.88/3,179,322.36
  6. Step 6: Final answer
    x = 2,385,979.50

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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.