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Finding the Fourth Proportional to 524.96, 723.90 and 400.64

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Solution

The fourth proportional to 524.96, 723.90 and 400.64 is: 552.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    524.96 : 723.90 = 400.64 : x
  2. Step 2: Convert to fraction form
    524.96/723.90 = 400.64/x
  3. Step 3: Cross multiply
    524.96x = 723.90 × 400.64
  4. Step 4: Simplify right side
    524.96x = 290,023.30
  5. Step 5: Solve for x
    x = 290,023.30/524.96
  6. Step 6: Final answer
    x = 552.47

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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.