Home / 641,894.13-885,824.78-351,501.03

Finding the Fourth Proportional to 641,894.13, 885,824.78 and 351,501.03

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Solution

The fourth proportional to 641,894.13, 885,824.78 and 351,501.03 is: 485,077.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,894.13 : 885,824.78 = 351,501.03 : x
  2. Step 2: Convert to fraction form
    641,894.13/885,824.78 = 351,501.03/x
  3. Step 3: Cross multiply
    641,894.13x = 885,824.78 × 351,501.03
  4. Step 4: Simplify right side
    641,894.13x = 311,368,320,812.02
  5. Step 5: Solve for x
    x = 311,368,320,812.02/641,894.13
  6. Step 6: Final answer
    x = 485,077.38

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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.