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Finding the Fourth Proportional to 557,693.28, 769,620.96 and 303,045.84

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Solution

The fourth proportional to 557,693.28, 769,620.96 and 303,045.84 is: 418,205.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,693.28 : 769,620.96 = 303,045.84 : x
  2. Step 2: Convert to fraction form
    557,693.28/769,620.96 = 303,045.84/x
  3. Step 3: Cross multiply
    557,693.28x = 769,620.96 × 303,045.84
  4. Step 4: Simplify right side
    557,693.28x = 233,230,430,304.81
  5. Step 5: Solve for x
    x = 233,230,430,304.81/557,693.28
  6. Step 6: Final answer
    x = 418,205.56

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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.