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Finding the Fourth Proportional to 1,496.40, 2,244.66 and 400.74

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Solution

The fourth proportional to 1,496.40, 2,244.66 and 400.74 is: 601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,496.40 : 2,244.66 = 400.74 : x
  2. Step 2: Convert to fraction form
    1,496.40/2,244.66 = 400.74/x
  3. Step 3: Cross multiply
    1,496.40x = 2,244.66 × 400.74
  4. Step 4: Simplify right side
    1,496.40x = 899,525.05
  5. Step 5: Solve for x
    x = 899,525.05/1,496.40
  6. Step 6: Final answer
    x = 601.13

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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.