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Finding the Fourth Proportional to 844.16, 1,165.48 and 579.05

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Solution

The fourth proportional to 844.16, 1,165.48 and 579.05 is: 799.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.16 : 1,165.48 = 579.05 : x
  2. Step 2: Convert to fraction form
    844.16/1,165.48 = 579.05/x
  3. Step 3: Cross multiply
    844.16x = 1,165.48 × 579.05
  4. Step 4: Simplify right side
    844.16x = 674,869.92
  5. Step 5: Solve for x
    x = 674,869.92/844.16
  6. Step 6: Final answer
    x = 799.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.