Home / 557,921.78-769,932.58-303,272.96

Finding the Fourth Proportional to 557,921.78, 769,932.58 and 303,272.96

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Solution

The fourth proportional to 557,921.78, 769,932.58 and 303,272.96 is: 418,516.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,921.78 : 769,932.58 = 303,272.96 : x
  2. Step 2: Convert to fraction form
    557,921.78/769,932.58 = 303,272.96/x
  3. Step 3: Cross multiply
    557,921.78x = 769,932.58 × 303,272.96
  4. Step 4: Simplify right side
    557,921.78x = 233,499,732,537.04
  5. Step 5: Solve for x
    x = 233,499,732,537.04/557,921.78
  6. Step 6: Final answer
    x = 418,516.97

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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.