Home / 909,619.21-1,254,887.27-667,481.05

Finding the Fourth Proportional to 909,619.21, 1,254,887.27 and 667,481.05

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Solution

The fourth proportional to 909,619.21, 1,254,887.27 and 667,481.05 is: 920,839.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,619.21 : 1,254,887.27 = 667,481.05 : x
  2. Step 2: Convert to fraction form
    909,619.21/1,254,887.27 = 667,481.05/x
  3. Step 3: Cross multiply
    909,619.21x = 1,254,887.27 × 667,481.05
  4. Step 4: Simplify right side
    909,619.21x = 837,613,469,273.83
  5. Step 5: Solve for x
    x = 837,613,469,273.83/909,619.21
  6. Step 6: Final answer
    x = 920,839.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.