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Finding the Fourth Proportional to 551,093.38, 760,522.92 and 309,394.33

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Solution

The fourth proportional to 551,093.38, 760,522.92 and 309,394.33 is: 426,972.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,093.38 : 760,522.92 = 309,394.33 : x
  2. Step 2: Convert to fraction form
    551,093.38/760,522.92 = 309,394.33/x
  3. Step 3: Cross multiply
    551,093.38x = 760,522.92 × 309,394.33
  4. Step 4: Simplify right side
    551,093.38x = 235,301,479,283.04
  5. Step 5: Solve for x
    x = 235,301,479,283.04/551,093.38
  6. Step 6: Final answer
    x = 426,972.07

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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.