Home / 1,135,431.91-1,701,219.84-685,206.73

Finding the Fourth Proportional to 1,135,431.91, 1,701,219.84 and 685,206.73

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Solution

The fourth proportional to 1,135,431.91, 1,701,219.84 and 685,206.73 is: 1,026,646.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135,431.91 : 1,701,219.84 = 685,206.73 : x
  2. Step 2: Convert to fraction form
    1,135,431.91/1,701,219.84 = 685,206.73/x
  3. Step 3: Cross multiply
    1,135,431.91x = 1,701,219.84 × 685,206.73
  4. Step 4: Simplify right side
    1,135,431.91x = 1,165,687,283,577.52
  5. Step 5: Solve for x
    x = 1,165,687,283,577.52/1,135,431.91
  6. Step 6: Final answer
    x = 1,026,646.58

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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.