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Finding the Fourth Proportional to 992.16, 1,488.55 and 597.27

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Solution

The fourth proportional to 992.16, 1,488.55 and 597.27 is: 896.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    992.16 : 1,488.55 = 597.27 : x
  2. Step 2: Convert to fraction form
    992.16/1,488.55 = 597.27/x
  3. Step 3: Cross multiply
    992.16x = 1,488.55 × 597.27
  4. Step 4: Simplify right side
    992.16x = 889,059.55
  5. Step 5: Solve for x
    x = 889,059.55/992.16
  6. Step 6: Final answer
    x = 896.09

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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.