Home / 641,895.72-885,829.96-351,519.54

Finding the Fourth Proportional to 641,895.72, 885,829.96 and 351,519.54

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Solution

The fourth proportional to 641,895.72, 885,829.96 and 351,519.54 is: 485,104.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,895.72 : 885,829.96 = 351,519.54 : x
  2. Step 2: Convert to fraction form
    641,895.72/885,829.96 = 351,519.54/x
  3. Step 3: Cross multiply
    641,895.72x = 885,829.96 × 351,519.54
  4. Step 4: Simplify right side
    641,895.72x = 311,386,540,057.42
  5. Step 5: Solve for x
    x = 311,386,540,057.42/641,895.72
  6. Step 6: Final answer
    x = 485,104.56

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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.