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Finding the Fourth Proportional to 741.50, 1,022.66 and 555.44

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Solution

The fourth proportional to 741.50, 1,022.66 and 555.44 is: 766.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    741.50 : 1,022.66 = 555.44 : x
  2. Step 2: Convert to fraction form
    741.50/1,022.66 = 555.44/x
  3. Step 3: Cross multiply
    741.50x = 1,022.66 × 555.44
  4. Step 4: Simplify right side
    741.50x = 568,018.38
  5. Step 5: Solve for x
    x = 568,018.38/741.50
  6. Step 6: Final answer
    x = 766.04

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Half scale
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Double scale
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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.