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Finding the Fourth Proportional to 1,301.78, 1,952.96 and 480.07

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Solution

The fourth proportional to 1,301.78, 1,952.96 and 480.07 is: 720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,301.78 : 1,952.96 = 480.07 : x
  2. Step 2: Convert to fraction form
    1,301.78/1,952.96 = 480.07/x
  3. Step 3: Cross multiply
    1,301.78x = 1,952.96 × 480.07
  4. Step 4: Simplify right side
    1,301.78x = 937,550.22
  5. Step 5: Solve for x
    x = 937,550.22/1,301.78
  6. Step 6: Final answer
    x = 720.20

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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.