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Finding the Fourth Proportional to 557,935.76, 769,951.92 and 303,286.96

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Solution

The fourth proportional to 557,935.76, 769,951.92 and 303,286.96 is: 418,536.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,935.76 : 769,951.92 = 303,286.96 : x
  2. Step 2: Convert to fraction form
    557,935.76/769,951.92 = 303,286.96/x
  3. Step 3: Cross multiply
    557,935.76x = 769,951.92 × 303,286.96
  4. Step 4: Simplify right side
    557,935.76x = 233,516,377,162.96
  5. Step 5: Solve for x
    x = 233,516,377,162.96/557,935.76
  6. Step 6: Final answer
    x = 418,536.32

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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.