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Finding the Fourth Proportional to 1,589.87, 2,384.10 and 494.14

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Solution

The fourth proportional to 1,589.87, 2,384.10 and 494.14 is: 740.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,589.87 : 2,384.10 = 494.14 : x
  2. Step 2: Convert to fraction form
    1,589.87/2,384.10 = 494.14/x
  3. Step 3: Cross multiply
    1,589.87x = 2,384.10 × 494.14
  4. Step 4: Simplify right side
    1,589.87x = 1,178,079.17
  5. Step 5: Solve for x
    x = 1,178,079.17/1,589.87
  6. Step 6: Final answer
    x = 740.99

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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.