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Finding the Fourth Proportional to 449,231.40, 673,847.10 and 360,657.90

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Solution

The fourth proportional to 449,231.40, 673,847.10 and 360,657.90 is: 540,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,231.40 : 673,847.10 = 360,657.90 : x
  2. Step 2: Convert to fraction form
    449,231.40/673,847.10 = 360,657.90/x
  3. Step 3: Cross multiply
    449,231.40x = 673,847.10 × 360,657.90
  4. Step 4: Simplify right side
    449,231.40x = 243,028,280,007.09
  5. Step 5: Solve for x
    x = 243,028,280,007.09/449,231.40
  6. Step 6: Final answer
    x = 540,986.85

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Similar ratio
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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.