Home / 639,355.43-882,306.14-352,875.56

Finding the Fourth Proportional to 639,355.43, 882,306.14 and 352,875.56

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Solution

The fourth proportional to 639,355.43, 882,306.14 and 352,875.56 is: 486,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,355.43 : 882,306.14 = 352,875.56 : x
  2. Step 2: Convert to fraction form
    639,355.43/882,306.14 = 352,875.56/x
  3. Step 3: Cross multiply
    639,355.43x = 882,306.14 × 352,875.56
  4. Step 4: Simplify right side
    639,355.43x = 311,344,267,068.03
  5. Step 5: Solve for x
    x = 311,344,267,068.03/639,355.43
  6. Step 6: Final answer
    x = 486,965.86

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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.