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Finding the Fourth Proportional to 679.02, 936.45 and 446.10

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Solution

The fourth proportional to 679.02, 936.45 and 446.10 is: 615.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    679.02 : 936.45 = 446.10 : x
  2. Step 2: Convert to fraction form
    679.02/936.45 = 446.10/x
  3. Step 3: Cross multiply
    679.02x = 936.45 × 446.10
  4. Step 4: Simplify right side
    679.02x = 417,750.35
  5. Step 5: Solve for x
    x = 417,750.35/679.02
  6. Step 6: Final answer
    x = 615.23

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.