Home / 1,581,268.72-2,182,147.70-856,116.24

Finding the Fourth Proportional to 1,581,268.72, 2,182,147.70 and 856,116.24

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Solution

The fourth proportional to 1,581,268.72, 2,182,147.70 and 856,116.24 is: 1,181,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,268.72 : 2,182,147.70 = 856,116.24 : x
  2. Step 2: Convert to fraction form
    1,581,268.72/2,182,147.70 = 856,116.24/x
  3. Step 3: Cross multiply
    1,581,268.72x = 2,182,147.70 × 856,116.24
  4. Step 4: Simplify right side
    1,581,268.72x = 1,868,172,084,048.65
  5. Step 5: Solve for x
    x = 1,868,172,084,048.65/1,581,268.72
  6. Step 6: Final answer
    x = 1,181,438.71

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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.