Home / 790,917.24-1,091,460.78-428,335.32

Finding the Fourth Proportional to 790,917.24, 1,091,460.78 and 428,335.32

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Solution

The fourth proportional to 790,917.24, 1,091,460.78 and 428,335.32 is: 591,100.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,917.24 : 1,091,460.78 = 428,335.32 : x
  2. Step 2: Convert to fraction form
    790,917.24/1,091,460.78 = 428,335.32/x
  3. Step 3: Cross multiply
    790,917.24x = 1,091,460.78 × 428,335.32
  4. Step 4: Simplify right side
    790,917.24x = 467,511,202,468.75
  5. Step 5: Solve for x
    x = 467,511,202,468.75/790,917.24
  6. Step 6: Final answer
    x = 591,100.03

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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.