Home / 641,725.20-885,673.43-369,740.97

Finding the Fourth Proportional to 641,725.20, 885,673.43 and 369,740.97

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Solution

The fourth proportional to 641,725.20, 885,673.43 and 369,740.97 is: 510,295.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,725.20 : 885,673.43 = 369,740.97 : x
  2. Step 2: Convert to fraction form
    641,725.20/885,673.43 = 369,740.97/x
  3. Step 3: Cross multiply
    641,725.20x = 885,673.43 × 369,740.97
  4. Step 4: Simplify right side
    641,725.20x = 327,469,753,111.43
  5. Step 5: Solve for x
    x = 327,469,753,111.43/641,725.20
  6. Step 6: Final answer
    x = 510,295.92

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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.