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Finding the Fourth Proportional to 408,099.60, 612,149.40 and 283,683.60

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Solution

The fourth proportional to 408,099.60, 612,149.40 and 283,683.60 is: 425,525.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,099.60 : 612,149.40 = 283,683.60 : x
  2. Step 2: Convert to fraction form
    408,099.60/612,149.40 = 283,683.60/x
  3. Step 3: Cross multiply
    408,099.60x = 612,149.40 × 283,683.60
  4. Step 4: Simplify right side
    408,099.60x = 173,656,745,529.84
  5. Step 5: Solve for x
    x = 173,656,745,529.84/408,099.60
  6. Step 6: Final answer
    x = 425,525.40

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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.