Home / 843,499.70-1,265,119.56-274,879.40

Finding the Fourth Proportional to 843,499.70, 1,265,119.56 and 274,879.40

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Solution

The fourth proportional to 843,499.70, 1,265,119.56 and 274,879.40 is: 412,276.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,499.70 : 1,265,119.56 = 274,879.40 : x
  2. Step 2: Convert to fraction form
    843,499.70/1,265,119.56 = 274,879.40/x
  3. Step 3: Cross multiply
    843,499.70x = 1,265,119.56 × 274,879.40
  4. Step 4: Simplify right side
    843,499.70x = 347,755,305,581.06
  5. Step 5: Solve for x
    x = 347,755,305,581.06/843,499.70
  6. Step 6: Final answer
    x = 412,276.74

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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.