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Finding the Fourth Proportional to 448,074.30, 672,111.45 and 413,859.90

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Solution

The fourth proportional to 448,074.30, 672,111.45 and 413,859.90 is: 620,789.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,074.30 : 672,111.45 = 413,859.90 : x
  2. Step 2: Convert to fraction form
    448,074.30/672,111.45 = 413,859.90/x
  3. Step 3: Cross multiply
    448,074.30x = 672,111.45 × 413,859.90
  4. Step 4: Simplify right side
    448,074.30x = 278,159,977,485.86
  5. Step 5: Solve for x
    x = 278,159,977,485.86/448,074.30
  6. Step 6: Final answer
    x = 620,789.85

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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.