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Finding the Fourth Proportional to 677.49, 935.00 and 382.79

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Solution

The fourth proportional to 677.49, 935.00 and 382.79 is: 528.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    677.49 : 935.00 = 382.79 : x
  2. Step 2: Convert to fraction form
    677.49/935.00 = 382.79/x
  3. Step 3: Cross multiply
    677.49x = 935.00 × 382.79
  4. Step 4: Simplify right side
    677.49x = 357,902.06
  5. Step 5: Solve for x
    x = 357,902.06/677.49
  6. Step 6: Final answer
    x = 528.28

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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.