Home / 1,027,628.96-1,540,383.96-428,938.52

Finding the Fourth Proportional to 1,027,628.96, 1,540,383.96 and 428,938.52

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Solution

The fourth proportional to 1,027,628.96, 1,540,383.96 and 428,938.52 is: 642,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,027,628.96 : 1,540,383.96 = 428,938.52 : x
  2. Step 2: Convert to fraction form
    1,027,628.96/1,540,383.96 = 428,938.52/x
  3. Step 3: Cross multiply
    1,027,628.96x = 1,540,383.96 × 428,938.52
  4. Step 4: Simplify right side
    1,027,628.96x = 660,730,016,034.14
  5. Step 5: Solve for x
    x = 660,730,016,034.14/1,027,628.96
  6. Step 6: Final answer
    x = 642,965.55

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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.