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Finding the Fourth Proportional to 1,332.79, 1,998.88 and 602.57

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Solution

The fourth proportional to 1,332.79, 1,998.88 and 602.57 is: 903.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332.79 : 1,998.88 = 602.57 : x
  2. Step 2: Convert to fraction form
    1,332.79/1,998.88 = 602.57/x
  3. Step 3: Cross multiply
    1,332.79x = 1,998.88 × 602.57
  4. Step 4: Simplify right side
    1,332.79x = 1,204,468.61
  5. Step 5: Solve for x
    x = 1,204,468.61/1,332.79
  6. Step 6: Final answer
    x = 903.72

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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.