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Finding the Fourth Proportional to 677.41, 934.77 and 382.75

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Solution

The fourth proportional to 677.41, 934.77 and 382.75 is: 528.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.41 : 934.77 = 382.75 : x
  2. Step 2: Convert to fraction form
    677.41/934.77 = 382.75/x
  3. Step 3: Cross multiply
    677.41x = 934.77 × 382.75
  4. Step 4: Simplify right side
    677.41x = 357,783.22
  5. Step 5: Solve for x
    x = 357,783.22/677.41
  6. Step 6: Final answer
    x = 528.16

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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.