Home / 641,836.61-885,748.04-351,460.41

Finding the Fourth Proportional to 641,836.61, 885,748.04 and 351,460.41

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Solution

The fourth proportional to 641,836.61, 885,748.04 and 351,460.41 is: 485,022.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,836.61 : 885,748.04 = 351,460.41 : x
  2. Step 2: Convert to fraction form
    641,836.61/885,748.04 = 351,460.41/x
  3. Step 3: Cross multiply
    641,836.61x = 885,748.04 × 351,460.41
  4. Step 4: Simplify right side
    641,836.61x = 311,305,367,537.79
  5. Step 5: Solve for x
    x = 311,305,367,537.79/641,836.61
  6. Step 6: Final answer
    x = 485,022.77

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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.