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Finding the Fourth Proportional to 524.10, 721.53 and 446.02

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Solution

The fourth proportional to 524.10, 721.53 and 446.02 is: 614.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.10 : 721.53 = 446.02 : x
  2. Step 2: Convert to fraction form
    524.10/721.53 = 446.02/x
  3. Step 3: Cross multiply
    524.10x = 721.53 × 446.02
  4. Step 4: Simplify right side
    524.10x = 321,816.81
  5. Step 5: Solve for x
    x = 321,816.81/524.10
  6. Step 6: Final answer
    x = 614.04

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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.