Home / 1,187,873.64-1,639,142.87-729,007.56

Finding the Fourth Proportional to 1,187,873.64, 1,639,142.87 and 729,007.56

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Solution

The fourth proportional to 1,187,873.64, 1,639,142.87 and 729,007.56 is: 1,005,955.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,873.64 : 1,639,142.87 = 729,007.56 : x
  2. Step 2: Convert to fraction form
    1,187,873.64/1,639,142.87 = 729,007.56/x
  3. Step 3: Cross multiply
    1,187,873.64x = 1,639,142.87 × 729,007.56
  4. Step 4: Simplify right side
    1,187,873.64x = 1,194,947,540,505.06
  5. Step 5: Solve for x
    x = 1,194,947,540,505.06/1,187,873.64
  6. Step 6: Final answer
    x = 1,005,955.10

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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.