Home / 509,246.29-702,764.85-279,799.89

Finding the Fourth Proportional to 509,246.29, 702,764.85 and 279,799.89

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Solution

The fourth proportional to 509,246.29, 702,764.85 and 279,799.89 is: 386,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,246.29 : 702,764.85 = 279,799.89 : x
  2. Step 2: Convert to fraction form
    509,246.29/702,764.85 = 279,799.89/x
  3. Step 3: Cross multiply
    509,246.29x = 702,764.85 × 279,799.89
  4. Step 4: Simplify right side
    509,246.29x = 196,633,527,725.87
  5. Step 5: Solve for x
    x = 196,633,527,725.87/509,246.29
  6. Step 6: Final answer
    x = 386,126.58

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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.