Home / 448,614.60-673,289.10-445,115.40

Finding the Fourth Proportional to 448,614.60, 673,289.10 and 445,115.40

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Solution

The fourth proportional to 448,614.60, 673,289.10 and 445,115.40 is: 668,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,614.60 : 673,289.10 = 445,115.40 : x
  2. Step 2: Convert to fraction form
    448,614.60/673,289.10 = 445,115.40/x
  3. Step 3: Cross multiply
    448,614.60x = 673,289.10 × 445,115.40
  4. Step 4: Simplify right side
    448,614.60x = 299,691,347,062.14
  5. Step 5: Solve for x
    x = 299,691,347,062.14/448,614.60
  6. Step 6: Final answer
    x = 668,037.44

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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.