Home / 843,485.92-1,265,098.88-274,865.57

Finding the Fourth Proportional to 843,485.92, 1,265,098.88 and 274,865.57

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Solution

The fourth proportional to 843,485.92, 1,265,098.88 and 274,865.57 is: 412,255.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,485.92 : 1,265,098.88 = 274,865.57 : x
  2. Step 2: Convert to fraction form
    843,485.92/1,265,098.88 = 274,865.57/x
  3. Step 3: Cross multiply
    843,485.92x = 1,265,098.88 × 274,865.57
  4. Step 4: Simplify right side
    843,485.92x = 347,732,124,757.56
  5. Step 5: Solve for x
    x = 347,732,124,757.56/843,485.92
  6. Step 6: Final answer
    x = 412,255.99

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1.5x scale

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.