Home / 1,485,425.88-2,227,780.44-685,938.96

Finding the Fourth Proportional to 1,485,425.88, 2,227,780.44 and 685,938.96

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Solution

The fourth proportional to 1,485,425.88, 2,227,780.44 and 685,938.96 is: 1,028,742.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,425.88 : 2,227,780.44 = 685,938.96 : x
  2. Step 2: Convert to fraction form
    1,485,425.88/2,227,780.44 = 685,938.96/x
  3. Step 3: Cross multiply
    1,485,425.88x = 2,227,780.44 × 685,938.96
  4. Step 4: Simplify right side
    1,485,425.88x = 1,528,121,398,121.94
  5. Step 5: Solve for x
    x = 1,528,121,398,121.94/1,485,425.88
  6. Step 6: Final answer
    x = 1,028,742.95

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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.