Home / 1,288.48-1,932.40-466.60

Finding the Fourth Proportional to 1,288.48, 1,932.40 and 466.60

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Solution

The fourth proportional to 1,288.48, 1,932.40 and 466.60 is: 699.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288.48 : 1,932.40 = 466.60 : x
  2. Step 2: Convert to fraction form
    1,288.48/1,932.40 = 466.60/x
  3. Step 3: Cross multiply
    1,288.48x = 1,932.40 × 466.60
  4. Step 4: Simplify right side
    1,288.48x = 901,657.84
  5. Step 5: Solve for x
    x = 901,657.84/1,288.48
  6. Step 6: Final answer
    x = 699.78

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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.