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Finding the Fourth Proportional to 844.44, 1,264.59 and 432.99

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Solution

The fourth proportional to 844.44, 1,264.59 and 432.99 is: 648.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.44 : 1,264.59 = 432.99 : x
  2. Step 2: Convert to fraction form
    844.44/1,264.59 = 432.99/x
  3. Step 3: Cross multiply
    844.44x = 1,264.59 × 432.99
  4. Step 4: Simplify right side
    844.44x = 547,554.82
  5. Step 5: Solve for x
    x = 547,554.82/844.44
  6. Step 6: Final answer
    x = 648.42

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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.