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Finding the Fourth Proportional to 540,113.60, 809,781.60 and 303,528.80

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Solution

The fourth proportional to 540,113.60, 809,781.60 and 303,528.80 is: 455,074.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,113.60 : 809,781.60 = 303,528.80 : x
  2. Step 2: Convert to fraction form
    540,113.60/809,781.60 = 303,528.80/x
  3. Step 3: Cross multiply
    540,113.60x = 809,781.60 × 303,528.80
  4. Step 4: Simplify right side
    540,113.60x = 245,792,037,310.08
  5. Step 5: Solve for x
    x = 245,792,037,310.08/540,113.60
  6. Step 6: Final answer
    x = 455,074.71

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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.