Home / 738,270.20-1,107,405.30-419,405.60

Finding the Fourth Proportional to 738,270.20, 1,107,405.30 and 419,405.60

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Solution

The fourth proportional to 738,270.20, 1,107,405.30 and 419,405.60 is: 629,108.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,270.20 : 1,107,405.30 = 419,405.60 : x
  2. Step 2: Convert to fraction form
    738,270.20/1,107,405.30 = 419,405.60/x
  3. Step 3: Cross multiply
    738,270.20x = 1,107,405.30 × 419,405.60
  4. Step 4: Simplify right side
    738,270.20x = 464,451,984,289.68
  5. Step 5: Solve for x
    x = 464,451,984,289.68/738,270.20
  6. Step 6: Final answer
    x = 629,108.40

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Double scale
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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.