Home / 741,008.72-1,022,578.70-418,711.88

Finding the Fourth Proportional to 741,008.72, 1,022,578.70 and 418,711.88

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Solution

The fourth proportional to 741,008.72, 1,022,578.70 and 418,711.88 is: 577,814.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,008.72 : 1,022,578.70 = 418,711.88 : x
  2. Step 2: Convert to fraction form
    741,008.72/1,022,578.70 = 418,711.88/x
  3. Step 3: Cross multiply
    741,008.72x = 1,022,578.70 × 418,711.88
  4. Step 4: Simplify right side
    741,008.72x = 428,165,850,387.84
  5. Step 5: Solve for x
    x = 428,165,850,387.84/741,008.72
  6. Step 6: Final answer
    x = 577,814.86

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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.