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Finding the Fourth Proportional to 664,998.40, 996,093.60 and 440,466.40

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Solution

The fourth proportional to 664,998.40, 996,093.60 and 440,466.40 is: 659,769.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,998.40 : 996,093.60 = 440,466.40 : x
  2. Step 2: Convert to fraction form
    664,998.40/996,093.60 = 440,466.40/x
  3. Step 3: Cross multiply
    664,998.40x = 996,093.60 × 440,466.40
  4. Step 4: Simplify right side
    664,998.40x = 438,745,762,055.04
  5. Step 5: Solve for x
    x = 438,745,762,055.04/664,998.40
  6. Step 6: Final answer
    x = 659,769.65

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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.