Home / 501,272.76-691,767.18-274,917.72

Finding the Fourth Proportional to 501,272.76, 691,767.18 and 274,917.72

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Solution

The fourth proportional to 501,272.76, 691,767.18 and 274,917.72 is: 379,392.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,272.76 : 691,767.18 = 274,917.72 : x
  2. Step 2: Convert to fraction form
    501,272.76/691,767.18 = 274,917.72/x
  3. Step 3: Cross multiply
    501,272.76x = 691,767.18 × 274,917.72
  4. Step 4: Simplify right side
    501,272.76x = 190,179,055,896.43
  5. Step 5: Solve for x
    x = 190,179,055,896.43/501,272.76
  6. Step 6: Final answer
    x = 379,392.36

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1.5x scale

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.