Home / 641,735.03-885,604.86-351,341.78

Finding the Fourth Proportional to 641,735.03, 885,604.86 and 351,341.78

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Solution

The fourth proportional to 641,735.03, 885,604.86 and 351,341.78 is: 484,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,735.03 : 885,604.86 = 351,341.78 : x
  2. Step 2: Convert to fraction form
    641,735.03/885,604.86 = 351,341.78/x
  3. Step 3: Cross multiply
    641,735.03x = 885,604.86 × 351,341.78
  4. Step 4: Simplify right side
    641,735.03x = 311,149,983,461.03
  5. Step 5: Solve for x
    x = 311,149,983,461.03/641,735.03
  6. Step 6: Final answer
    x = 484,857.41

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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.