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Finding the Fourth Proportional to 509,252.32, 702,773.16 and 279,805.92

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Solution

The fourth proportional to 509,252.32, 702,773.16 and 279,805.92 is: 386,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,252.32 : 702,773.16 = 279,805.92 : x
  2. Step 2: Convert to fraction form
    509,252.32/702,773.16 = 279,805.92/x
  3. Step 3: Cross multiply
    509,252.32x = 702,773.16 × 279,805.92
  4. Step 4: Simplify right side
    509,252.32x = 196,640,090,585.11
  5. Step 5: Solve for x
    x = 196,640,090,585.11/509,252.32
  6. Step 6: Final answer
    x = 386,134.89

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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.