Home / 857,387.56-1,285,956.13-250,012.65

Finding the Fourth Proportional to 857,387.56, 1,285,956.13 and 250,012.65

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Solution

The fourth proportional to 857,387.56, 1,285,956.13 and 250,012.65 is: 374,982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,387.56 : 1,285,956.13 = 250,012.65 : x
  2. Step 2: Convert to fraction form
    857,387.56/1,285,956.13 = 250,012.65/x
  3. Step 3: Cross multiply
    857,387.56x = 1,285,956.13 × 250,012.65
  4. Step 4: Simplify right side
    857,387.56x = 321,505,300,191.21
  5. Step 5: Solve for x
    x = 321,505,300,191.21/857,387.56
  6. Step 6: Final answer
    x = 374,982.47

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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.