Home / 880,882.25-1,215,559.89-518,236.08

Finding the Fourth Proportional to 880,882.25, 1,215,559.89 and 518,236.08

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Solution

The fourth proportional to 880,882.25, 1,215,559.89 and 518,236.08 is: 715,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,882.25 : 1,215,559.89 = 518,236.08 : x
  2. Step 2: Convert to fraction form
    880,882.25/1,215,559.89 = 518,236.08/x
  3. Step 3: Cross multiply
    880,882.25x = 1,215,559.89 × 518,236.08
  4. Step 4: Simplify right side
    880,882.25x = 629,946,986,382.94
  5. Step 5: Solve for x
    x = 629,946,986,382.94/880,882.25
  6. Step 6: Final answer
    x = 715,131.89

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Double scale
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1.5x scale

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.