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Finding the Fourth Proportional to 540,105.60, 809,769.60 and 303,520.80

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Solution

The fourth proportional to 540,105.60, 809,769.60 and 303,520.80 is: 455,062.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,105.60 : 809,769.60 = 303,520.80 : x
  2. Step 2: Convert to fraction form
    540,105.60/809,769.60 = 303,520.80/x
  3. Step 3: Cross multiply
    540,105.60x = 809,769.60 × 303,520.80
  4. Step 4: Simplify right side
    540,105.60x = 245,781,916,807.68
  5. Step 5: Solve for x
    x = 245,781,916,807.68/540,105.60
  6. Step 6: Final answer
    x = 455,062.71

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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.