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Finding the Fourth Proportional to 677.88, 933.04 and 481.05

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Solution

The fourth proportional to 677.88, 933.04 and 481.05 is: 662.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.88 : 933.04 = 481.05 : x
  2. Step 2: Convert to fraction form
    677.88/933.04 = 481.05/x
  3. Step 3: Cross multiply
    677.88x = 933.04 × 481.05
  4. Step 4: Simplify right side
    677.88x = 448,838.89
  5. Step 5: Solve for x
    x = 448,838.89/677.88
  6. Step 6: Final answer
    x = 662.12

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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.