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Finding the Fourth Proportional to 448,906.60, 673,727.10 and 445,407.40

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Solution

The fourth proportional to 448,906.60, 673,727.10 and 445,407.40 is: 668,475.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,906.60 : 673,727.10 = 445,407.40 : x
  2. Step 2: Convert to fraction form
    448,906.60/673,727.10 = 445,407.40/x
  3. Step 3: Cross multiply
    448,906.60x = 673,727.10 × 445,407.40
  4. Step 4: Simplify right side
    448,906.60x = 300,083,035,920.54
  5. Step 5: Solve for x
    x = 300,083,035,920.54/448,906.60
  6. Step 6: Final answer
    x = 668,475.44

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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.