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Finding the Fourth Proportional to 992.88, 1,488.58 and 602.97

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Solution

The fourth proportional to 992.88, 1,488.58 and 602.97 is: 904.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    992.88 : 1,488.58 = 602.97 : x
  2. Step 2: Convert to fraction form
    992.88/1,488.58 = 602.97/x
  3. Step 3: Cross multiply
    992.88x = 1,488.58 × 602.97
  4. Step 4: Simplify right side
    992.88x = 897,569.08
  5. Step 5: Solve for x
    x = 897,569.08/992.88
  6. Step 6: Final answer
    x = 904.01

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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.