Home / 885,869.56-1,328,979.42-324,908.92

Finding the Fourth Proportional to 885,869.56, 1,328,979.42 and 324,908.92

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Solution

The fourth proportional to 885,869.56, 1,328,979.42 and 324,908.92 is: 487,427.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,869.56 : 1,328,979.42 = 324,908.92 : x
  2. Step 2: Convert to fraction form
    885,869.56/1,328,979.42 = 324,908.92/x
  3. Step 3: Cross multiply
    885,869.56x = 1,328,979.42 × 324,908.92
  4. Step 4: Simplify right side
    885,869.56x = 431,797,268,054.43
  5. Step 5: Solve for x
    x = 431,797,268,054.43/885,869.56
  6. Step 6: Final answer
    x = 487,427.59

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1.5x scale

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.