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Finding the Fourth Proportional to 448,144.60, 672,216.90 and 445,034.20

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Solution

The fourth proportional to 448,144.60, 672,216.90 and 445,034.20 is: 667,551.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,144.60 : 672,216.90 = 445,034.20 : x
  2. Step 2: Convert to fraction form
    448,144.60/672,216.90 = 445,034.20/x
  3. Step 3: Cross multiply
    448,144.60x = 672,216.90 × 445,034.20
  4. Step 4: Simplify right side
    448,144.60x = 299,159,510,317.98
  5. Step 5: Solve for x
    x = 299,159,510,317.98/448,144.60
  6. Step 6: Final answer
    x = 667,551.30

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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.