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Finding the Fourth Proportional to 1,230.89, 1,846.68 and 614.43

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Solution

The fourth proportional to 1,230.89, 1,846.68 and 614.43 is: 921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230.89 : 1,846.68 = 614.43 : x
  2. Step 2: Convert to fraction form
    1,230.89/1,846.68 = 614.43/x
  3. Step 3: Cross multiply
    1,230.89x = 1,846.68 × 614.43
  4. Step 4: Simplify right side
    1,230.89x = 1,134,655.59
  5. Step 5: Solve for x
    x = 1,134,655.59/1,230.89
  6. Step 6: Final answer
    x = 921.82

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1.5x scale

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.