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Finding the Fourth Proportional to 557,757.37, 769,713.48 and 303,108.76

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Solution

The fourth proportional to 557,757.37, 769,713.48 and 303,108.76 is: 418,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,757.37 : 769,713.48 = 303,108.76 : x
  2. Step 2: Convert to fraction form
    557,757.37/769,713.48 = 303,108.76/x
  3. Step 3: Cross multiply
    557,757.37x = 769,713.48 × 303,108.76
  4. Step 4: Simplify right side
    557,757.37x = 233,306,898,478.09
  5. Step 5: Solve for x
    x = 233,306,898,478.09/557,757.37
  6. Step 6: Final answer
    x = 418,294.60

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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.