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Finding the Fourth Proportional to 1,423.32, 2,133.78 and 600.84

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Solution

The fourth proportional to 1,423.32, 2,133.78 and 600.84 is: 900.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.32 : 2,133.78 = 600.84 : x
  2. Step 2: Convert to fraction form
    1,423.32/2,133.78 = 600.84/x
  3. Step 3: Cross multiply
    1,423.32x = 2,133.78 × 600.84
  4. Step 4: Simplify right side
    1,423.32x = 1,282,060.38
  5. Step 5: Solve for x
    x = 1,282,060.38/1,423.32
  6. Step 6: Final answer
    x = 900.75

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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.