Home / 1,321,173.56-1,981,274.24-456,388.48

Finding the Fourth Proportional to 1,321,173.56, 1,981,274.24 and 456,388.48

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Solution

The fourth proportional to 1,321,173.56, 1,981,274.24 and 456,388.48 is: 684,414.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,173.56 : 1,981,274.24 = 456,388.48 : x
  2. Step 2: Convert to fraction form
    1,321,173.56/1,981,274.24 = 456,388.48/x
  3. Step 3: Cross multiply
    1,321,173.56x = 1,981,274.24 × 456,388.48
  4. Step 4: Simplify right side
    1,321,173.56x = 904,230,738,856.76
  5. Step 5: Solve for x
    x = 904,230,738,856.76/1,321,173.56
  6. Step 6: Final answer
    x = 684,414.80

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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.