Home / 685,151.96-1,027,869.77-205,360.38

Finding the Fourth Proportional to 685,151.96, 1,027,869.77 and 205,360.38

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Solution

The fourth proportional to 685,151.96, 1,027,869.77 and 205,360.38 is: 308,083.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,151.96 : 1,027,869.77 = 205,360.38 : x
  2. Step 2: Convert to fraction form
    685,151.96/1,027,869.77 = 205,360.38/x
  3. Step 3: Cross multiply
    685,151.96x = 1,027,869.77 × 205,360.38
  4. Step 4: Simplify right side
    685,151.96x = 211,083,727,071.11
  5. Step 5: Solve for x
    x = 211,083,727,071.11/685,151.96
  6. Step 6: Final answer
    x = 308,083.08

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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.