Home / 641,882.59-885,811.89-351,506.50

Finding the Fourth Proportional to 641,882.59, 885,811.89 and 351,506.50

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Solution

The fourth proportional to 641,882.59, 885,811.89 and 351,506.50 is: 485,086.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,882.59 : 885,811.89 = 351,506.50 : x
  2. Step 2: Convert to fraction form
    641,882.59/885,811.89 = 351,506.50/x
  3. Step 3: Cross multiply
    641,882.59x = 885,811.89 × 351,506.50
  4. Step 4: Simplify right side
    641,882.59x = 311,368,637,112.29
  5. Step 5: Solve for x
    x = 311,368,637,112.29/641,882.59
  6. Step 6: Final answer
    x = 485,086.59

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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.