Home / 685,727.10-1,027,610.61-385,577.76

Finding the Fourth Proportional to 685,727.10, 1,027,610.61 and 385,577.76

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Solution

The fourth proportional to 685,727.10, 1,027,610.61 and 385,577.76 is: 577,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,727.10 : 1,027,610.61 = 385,577.76 : x
  2. Step 2: Convert to fraction form
    685,727.10/1,027,610.61 = 385,577.76/x
  3. Step 3: Cross multiply
    685,727.10x = 1,027,610.61 × 385,577.76
  4. Step 4: Simplify right side
    685,727.10x = 396,223,797,156.03
  5. Step 5: Solve for x
    x = 396,223,797,156.03/685,727.10
  6. Step 6: Final answer
    x = 577,815.57

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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.