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Finding the Fourth Proportional to 1,360.80, 2,040.66 and 483.13

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Solution

The fourth proportional to 1,360.80, 2,040.66 and 483.13 is: 724.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.80 : 2,040.66 = 483.13 : x
  2. Step 2: Convert to fraction form
    1,360.80/2,040.66 = 483.13/x
  3. Step 3: Cross multiply
    1,360.80x = 2,040.66 × 483.13
  4. Step 4: Simplify right side
    1,360.80x = 985,904.07
  5. Step 5: Solve for x
    x = 985,904.07/1,360.80
  6. Step 6: Final answer
    x = 724.50

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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.