Home / 457,690.05-686,789.43-204,960.33

Finding the Fourth Proportional to 457,690.05, 686,789.43 and 204,960.33

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Solution

The fourth proportional to 457,690.05, 686,789.43 and 204,960.33 is: 307,554.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,690.05 : 686,789.43 = 204,960.33 : x
  2. Step 2: Convert to fraction form
    457,690.05/686,789.43 = 204,960.33/x
  3. Step 3: Cross multiply
    457,690.05x = 686,789.43 × 204,960.33
  4. Step 4: Simplify right side
    457,690.05x = 140,764,588,213.31
  5. Step 5: Solve for x
    x = 140,764,588,213.31/457,690.05
  6. Step 6: Final answer
    x = 307,554.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.