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Finding the Fourth Proportional to 674,406.80, 1,011,480.60 and 201,107.60

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Solution

The fourth proportional to 674,406.80, 1,011,480.60 and 201,107.60 is: 301,622.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,406.80 : 1,011,480.60 = 201,107.60 : x
  2. Step 2: Convert to fraction form
    674,406.80/1,011,480.60 = 201,107.60/x
  3. Step 3: Cross multiply
    674,406.80x = 1,011,480.60 × 201,107.60
  4. Step 4: Simplify right side
    674,406.80x = 203,416,435,912.56
  5. Step 5: Solve for x
    x = 203,416,435,912.56/674,406.80
  6. Step 6: Final answer
    x = 301,622.75

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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.