Home / 641,727.20-885,676.19-369,742.97

Finding the Fourth Proportional to 641,727.20, 885,676.19 and 369,742.97

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Solution

The fourth proportional to 641,727.20, 885,676.19 and 369,742.97 is: 510,298.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,727.20 : 885,676.19 = 369,742.97 : x
  2. Step 2: Convert to fraction form
    641,727.20/885,676.19 = 369,742.97/x
  3. Step 3: Cross multiply
    641,727.20x = 885,676.19 × 369,742.97
  4. Step 4: Simplify right side
    641,727.20x = 327,472,538,671.79
  5. Step 5: Solve for x
    x = 327,472,538,671.79/641,727.20
  6. Step 6: Final answer
    x = 510,298.68

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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.