Home / 654,421.08-981,631.91-205,176.97

Finding the Fourth Proportional to 654,421.08, 981,631.91 and 205,176.97

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Solution

The fourth proportional to 654,421.08, 981,631.91 and 205,176.97 is: 307,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,421.08 : 981,631.91 = 205,176.97 : x
  2. Step 2: Convert to fraction form
    654,421.08/981,631.91 = 205,176.97/x
  3. Step 3: Cross multiply
    654,421.08x = 981,631.91 × 205,176.97
  4. Step 4: Simplify right side
    654,421.08x = 201,408,260,949.11
  5. Step 5: Solve for x
    x = 201,408,260,949.11/654,421.08
  6. Step 6: Final answer
    x = 307,765.55

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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.