Home / 1,226.34-1,839.68-404.70

Finding the Fourth Proportional to 1,226.34, 1,839.68 and 404.70

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Solution

The fourth proportional to 1,226.34, 1,839.68 and 404.70 is: 607.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226.34 : 1,839.68 = 404.70 : x
  2. Step 2: Convert to fraction form
    1,226.34/1,839.68 = 404.70/x
  3. Step 3: Cross multiply
    1,226.34x = 1,839.68 × 404.70
  4. Step 4: Simplify right side
    1,226.34x = 744,518.50
  5. Step 5: Solve for x
    x = 744,518.50/1,226.34
  6. Step 6: Final answer
    x = 607.11

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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.