Home / 1,986,382.50-2,741,018.28-1,115,017.74

Finding the Fourth Proportional to 1,986,382.50, 2,741,018.28 and 1,115,017.74

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Solution

The fourth proportional to 1,986,382.50, 2,741,018.28 and 1,115,017.74 is: 1,538,618.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,382.50 : 2,741,018.28 = 1,115,017.74 : x
  2. Step 2: Convert to fraction form
    1,986,382.50/2,741,018.28 = 1,115,017.74/x
  3. Step 3: Cross multiply
    1,986,382.50x = 2,741,018.28 × 1,115,017.74
  4. Step 4: Simplify right side
    1,986,382.50x = 3,056,284,007,864.29
  5. Step 5: Solve for x
    x = 3,056,284,007,864.29/1,986,382.50
  6. Step 6: Final answer
    x = 1,538,618.07

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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.