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Finding the Fourth Proportional to 557,859.33, 769,850.96 and 303,211.13

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Solution

The fourth proportional to 557,859.33, 769,850.96 and 303,211.13 is: 418,434.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,859.33 : 769,850.96 = 303,211.13 : x
  2. Step 2: Convert to fraction form
    557,859.33/769,850.96 = 303,211.13/x
  3. Step 3: Cross multiply
    557,859.33x = 769,850.96 × 303,211.13
  4. Step 4: Simplify right side
    557,859.33x = 233,427,374,147.87
  5. Step 5: Solve for x
    x = 233,427,374,147.87/557,859.33
  6. Step 6: Final answer
    x = 418,434.11

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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.