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Finding the Fourth Proportional to 1,496.72, 2,245.04 and 630.40

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Solution

The fourth proportional to 1,496.72, 2,245.04 and 630.40 is: 945.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,496.72 : 2,245.04 = 630.40 : x
  2. Step 2: Convert to fraction form
    1,496.72/2,245.04 = 630.40/x
  3. Step 3: Cross multiply
    1,496.72x = 2,245.04 × 630.40
  4. Step 4: Simplify right side
    1,496.72x = 1,415,273.22
  5. Step 5: Solve for x
    x = 1,415,273.22/1,496.72
  6. Step 6: Final answer
    x = 945.58

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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.