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Finding the Fourth Proportional to 557,859.39, 769,851.03 and 303,211.18

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Solution

The fourth proportional to 557,859.39, 769,851.03 and 303,211.18 is: 418,434.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,859.39 : 769,851.03 = 303,211.18 : x
  2. Step 2: Convert to fraction form
    557,859.39/769,851.03 = 303,211.18/x
  3. Step 3: Cross multiply
    557,859.39x = 769,851.03 × 303,211.18
  4. Step 4: Simplify right side
    557,859.39x = 233,427,439,230.52
  5. Step 5: Solve for x
    x = 233,427,439,230.52/557,859.39
  6. Step 6: Final answer
    x = 418,434.19

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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.