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Finding the Fourth Proportional to 599.22, 828.42 and 403.74

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Solution

The fourth proportional to 599.22, 828.42 and 403.74 is: 558.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    599.22 : 828.42 = 403.74 : x
  2. Step 2: Convert to fraction form
    599.22/828.42 = 403.74/x
  3. Step 3: Cross multiply
    599.22x = 828.42 × 403.74
  4. Step 4: Simplify right side
    599.22x = 334,466.29
  5. Step 5: Solve for x
    x = 334,466.29/599.22
  6. Step 6: Final answer
    x = 558.17

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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.