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Finding the Fourth Proportional to 448,565.67, 672,339.33 and 394,425.56

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Solution

The fourth proportional to 448,565.67, 672,339.33 and 394,425.56 is: 591,190.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,565.67 : 672,339.33 = 394,425.56 : x
  2. Step 2: Convert to fraction form
    448,565.67/672,339.33 = 394,425.56/x
  3. Step 3: Cross multiply
    448,565.67x = 672,339.33 × 394,425.56
  4. Step 4: Simplify right side
    448,565.67x = 265,187,818,426.12
  5. Step 5: Solve for x
    x = 265,187,818,426.12/448,565.67
  6. Step 6: Final answer
    x = 591,190.62

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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.