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Finding the Fourth Proportional to 844.77, 1,165.19 and 775.06

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Solution

The fourth proportional to 844.77, 1,165.19 and 775.06 is: 1,069.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.77 : 1,165.19 = 775.06 : x
  2. Step 2: Convert to fraction form
    844.77/1,165.19 = 775.06/x
  3. Step 3: Cross multiply
    844.77x = 1,165.19 × 775.06
  4. Step 4: Simplify right side
    844.77x = 903,088.64
  5. Step 5: Solve for x
    x = 903,088.64/844.77
  6. Step 6: Final answer
    x = 1,069.04

Related Problems

Find fourth proportional to 422.38, 582.60 and 387.53
Half scale
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Double scale
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Similar ratio
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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.