Home / 691,758.53-1,037,668.87-211,951.18

Finding the Fourth Proportional to 691,758.53, 1,037,668.87 and 211,951.18

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Solution

The fourth proportional to 691,758.53, 1,037,668.87 and 211,951.18 is: 317,936.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,758.53 : 1,037,668.87 = 211,951.18 : x
  2. Step 2: Convert to fraction form
    691,758.53/1,037,668.87 = 211,951.18/x
  3. Step 3: Cross multiply
    691,758.53x = 1,037,668.87 × 211,951.18
  4. Step 4: Simplify right side
    691,758.53x = 219,935,136,257.42
  5. Step 5: Solve for x
    x = 219,935,136,257.42/691,758.53
  6. Step 6: Final answer
    x = 317,936.29

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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.