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Finding the Fourth Proportional to 623.99, 935.79 and 294.89

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Solution

The fourth proportional to 623.99, 935.79 and 294.89 is: 442.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.99 : 935.79 = 294.89 : x
  2. Step 2: Convert to fraction form
    623.99/935.79 = 294.89/x
  3. Step 3: Cross multiply
    623.99x = 935.79 × 294.89
  4. Step 4: Simplify right side
    623.99x = 275,949.33
  5. Step 5: Solve for x
    x = 275,949.33/623.99
  6. Step 6: Final answer
    x = 442.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.