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Finding the Fourth Proportional to 557,753, 769,704.08 and 303,104.20

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Solution

The fourth proportional to 557,753, 769,704.08 and 303,104.20 is: 418,286.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,753 : 769,704.08 = 303,104.20 : x
  2. Step 2: Convert to fraction form
    557,753/769,704.08 = 303,104.20/x
  3. Step 3: Cross multiply
    557,753x = 769,704.08 × 303,104.20
  4. Step 4: Simplify right side
    557,753x = 233,300,539,405.14
  5. Step 5: Solve for x
    x = 233,300,539,405.14/557,753
  6. Step 6: Final answer
    x = 418,286.48

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1.5x scale

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.