Home / 691,363.62-1,037,197.67-211,595.09

Finding the Fourth Proportional to 691,363.62, 1,037,197.67 and 211,595.09

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Solution

The fourth proportional to 691,363.62, 1,037,197.67 and 211,595.09 is: 317,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,363.62 : 1,037,197.67 = 211,595.09 : x
  2. Step 2: Convert to fraction form
    691,363.62/1,037,197.67 = 211,595.09/x
  3. Step 3: Cross multiply
    691,363.62x = 1,037,197.67 × 211,595.09
  4. Step 4: Simplify right side
    691,363.62x = 219,465,928,087.48
  5. Step 5: Solve for x
    x = 219,465,928,087.48/691,363.62
  6. Step 6: Final answer
    x = 317,439.22

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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.