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Finding the Fourth Proportional to 540,019.60, 809,640.60 and 303,434.80

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Solution

The fourth proportional to 540,019.60, 809,640.60 and 303,434.80 is: 454,933.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,019.60 : 809,640.60 = 303,434.80 : x
  2. Step 2: Convert to fraction form
    540,019.60/809,640.60 = 303,434.80/x
  3. Step 3: Cross multiply
    540,019.60x = 809,640.60 × 303,434.80
  4. Step 4: Simplify right side
    540,019.60x = 245,673,133,532.88
  5. Step 5: Solve for x
    x = 245,673,133,532.88/540,019.60
  6. Step 6: Final answer
    x = 454,933.73

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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.