Home / 835,861.80-1,253,792.70-303,400.20

Finding the Fourth Proportional to 835,861.80, 1,253,792.70 and 303,400.20

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Solution

The fourth proportional to 835,861.80, 1,253,792.70 and 303,400.20 is: 455,100.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,861.80 : 1,253,792.70 = 303,400.20 : x
  2. Step 2: Convert to fraction form
    835,861.80/1,253,792.70 = 303,400.20/x
  3. Step 3: Cross multiply
    835,861.80x = 1,253,792.70 × 303,400.20
  4. Step 4: Simplify right side
    835,861.80x = 380,400,955,938.54
  5. Step 5: Solve for x
    x = 380,400,955,938.54/835,861.80
  6. Step 6: Final answer
    x = 455,100.30

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Double scale
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Similar ratio
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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.