Home / 641,725.06-885,591.03-351,331.73

Finding the Fourth Proportional to 641,725.06, 885,591.03 and 351,331.73

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Solution

The fourth proportional to 641,725.06, 885,591.03 and 351,331.73 is: 484,843.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,725.06 : 885,591.03 = 351,331.73 : x
  2. Step 2: Convert to fraction form
    641,725.06/885,591.03 = 351,331.73/x
  3. Step 3: Cross multiply
    641,725.06x = 885,591.03 × 351,331.73
  4. Step 4: Simplify right side
    641,725.06x = 311,136,223,555.68
  5. Step 5: Solve for x
    x = 311,136,223,555.68/641,725.06
  6. Step 6: Final answer
    x = 484,843.50

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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.