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Finding the Fourth Proportional to 448,613.60, 673,287.60 and 445,114.40

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Solution

The fourth proportional to 448,613.60, 673,287.60 and 445,114.40 is: 668,035.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,613.60 : 673,287.60 = 445,114.40 : x
  2. Step 2: Convert to fraction form
    448,613.60/673,287.60 = 445,114.40/x
  3. Step 3: Cross multiply
    448,613.60x = 673,287.60 × 445,114.40
  4. Step 4: Simplify right side
    448,613.60x = 299,690,006,101.44
  5. Step 5: Solve for x
    x = 299,690,006,101.44/448,613.60
  6. Step 6: Final answer
    x = 668,035.94

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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.