Home / 744,171.12-1,026,933.84-421,910.64

Finding the Fourth Proportional to 744,171.12, 1,026,933.84 and 421,910.64

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Solution

The fourth proportional to 744,171.12, 1,026,933.84 and 421,910.64 is: 582,224.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,171.12 : 1,026,933.84 = 421,910.64 : x
  2. Step 2: Convert to fraction form
    744,171.12/1,026,933.84 = 421,910.64/x
  3. Step 3: Cross multiply
    744,171.12x = 1,026,933.84 × 421,910.64
  4. Step 4: Simplify right side
    744,171.12x = 433,274,313,672.06
  5. Step 5: Solve for x
    x = 433,274,313,672.06/744,171.12
  6. Step 6: Final answer
    x = 582,224.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.