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Finding the Fourth Proportional to 448,066.30, 672,099.45 and 413,851.90

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Solution

The fourth proportional to 448,066.30, 672,099.45 and 413,851.90 is: 620,777.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,066.30 : 672,099.45 = 413,851.90 : x
  2. Step 2: Convert to fraction form
    448,066.30/672,099.45 = 413,851.90/x
  3. Step 3: Cross multiply
    448,066.30x = 672,099.45 × 413,851.90
  4. Step 4: Simplify right side
    448,066.30x = 278,149,634,371.46
  5. Step 5: Solve for x
    x = 278,149,634,371.46/448,066.30
  6. Step 6: Final answer
    x = 620,777.85

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Similar ratio
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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.