Home / 641,725.11-885,591.09-351,331.77

Finding the Fourth Proportional to 641,725.11, 885,591.09 and 351,331.77

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Solution

The fourth proportional to 641,725.11, 885,591.09 and 351,331.77 is: 484,843.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,725.11 : 885,591.09 = 351,331.77 : x
  2. Step 2: Convert to fraction form
    641,725.11/885,591.09 = 351,331.77/x
  3. Step 3: Cross multiply
    641,725.11x = 885,591.09 × 351,331.77
  4. Step 4: Simplify right side
    641,725.11x = 311,136,288,123.91
  5. Step 5: Solve for x
    x = 311,136,288,123.91/641,725.11
  6. Step 6: Final answer
    x = 484,843.56

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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.