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Finding the Fourth Proportional to 844.99, 1,266.41 and 455.17

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Solution

The fourth proportional to 844.99, 1,266.41 and 455.17 is: 682.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.99 : 1,266.41 = 455.17 : x
  2. Step 2: Convert to fraction form
    844.99/1,266.41 = 455.17/x
  3. Step 3: Cross multiply
    844.99x = 1,266.41 × 455.17
  4. Step 4: Simplify right side
    844.99x = 576,430.91
  5. Step 5: Solve for x
    x = 576,430.91/844.99
  6. Step 6: Final answer
    x = 682.17

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Double scale
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1.5x scale

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.