Home / 1,285,127.80-1,925,358.90-1,047,182.20

Finding the Fourth Proportional to 1,285,127.80, 1,925,358.90 and 1,047,182.20

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Solution

The fourth proportional to 1,285,127.80, 1,925,358.90 and 1,047,182.20 is: 1,568,872.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,127.80 : 1,925,358.90 = 1,047,182.20 : x
  2. Step 2: Convert to fraction form
    1,285,127.80/1,925,358.90 = 1,047,182.20/x
  3. Step 3: Cross multiply
    1,285,127.80x = 1,925,358.90 × 1,047,182.20
  4. Step 4: Simplify right side
    1,285,127.80x = 2,016,201,568,691.58
  5. Step 5: Solve for x
    x = 2,016,201,568,691.58/1,285,127.80
  6. Step 6: Final answer
    x = 1,568,872.43

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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.