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Finding the Fourth Proportional to 623.04, 934.13 and 447.45

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Solution

The fourth proportional to 623.04, 934.13 and 447.45 is: 670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.04 : 934.13 = 447.45 : x
  2. Step 2: Convert to fraction form
    623.04/934.13 = 447.45/x
  3. Step 3: Cross multiply
    623.04x = 934.13 × 447.45
  4. Step 4: Simplify right side
    623.04x = 417,979.41
  5. Step 5: Solve for x
    x = 417,979.41/623.04
  6. Step 6: Final answer
    x = 670.87

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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.