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Finding the Fourth Proportional to 509,371.03, 702,898.02 and 279,923.38

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Solution

The fourth proportional to 509,371.03, 702,898.02 and 279,923.38 is: 386,275.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,371.03 : 702,898.02 = 279,923.38 : x
  2. Step 2: Convert to fraction form
    509,371.03/702,898.02 = 279,923.38/x
  3. Step 3: Cross multiply
    509,371.03x = 702,898.02 × 279,923.38
  4. Step 4: Simplify right side
    509,371.03x = 196,757,589,553.71
  5. Step 5: Solve for x
    x = 196,757,589,553.71/509,371.03
  6. Step 6: Final answer
    x = 386,275.58

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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.