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Finding the Fourth Proportional to 1,022.62, 1,411.22 and 602.98

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Solution

The fourth proportional to 1,022.62, 1,411.22 and 602.98 is: 832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,022.62 : 1,411.22 = 602.98 : x
  2. Step 2: Convert to fraction form
    1,022.62/1,411.22 = 602.98/x
  3. Step 3: Cross multiply
    1,022.62x = 1,411.22 × 602.98
  4. Step 4: Simplify right side
    1,022.62x = 850,937.44
  5. Step 5: Solve for x
    x = 850,937.44/1,022.62
  6. Step 6: Final answer
    x = 832.11

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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.