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Finding the Fourth Proportional to 664,412.40, 996,618.60 and 243,633.60

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Solution

The fourth proportional to 664,412.40, 996,618.60 and 243,633.60 is: 365,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,412.40 : 996,618.60 = 243,633.60 : x
  2. Step 2: Convert to fraction form
    664,412.40/996,618.60 = 243,633.60/x
  3. Step 3: Cross multiply
    664,412.40x = 996,618.60 × 243,633.60
  4. Step 4: Simplify right side
    664,412.40x = 242,809,777,344.96
  5. Step 5: Solve for x
    x = 242,809,777,344.96/664,412.40
  6. Step 6: Final answer
    x = 365,450.40

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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.