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Finding the Fourth Proportional to 1,324.02, 1,986.03 and 446.58

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Solution

The fourth proportional to 1,324.02, 1,986.03 and 446.58 is: 669.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324.02 : 1,986.03 = 446.58 : x
  2. Step 2: Convert to fraction form
    1,324.02/1,986.03 = 446.58/x
  3. Step 3: Cross multiply
    1,324.02x = 1,986.03 × 446.58
  4. Step 4: Simplify right side
    1,324.02x = 886,921.28
  5. Step 5: Solve for x
    x = 886,921.28/1,324.02
  6. Step 6: Final answer
    x = 669.87

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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.