Home / 809,773.12-1,214,545.47-445,148.38

Finding the Fourth Proportional to 809,773.12, 1,214,545.47 and 445,148.38

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Solution

The fourth proportional to 809,773.12, 1,214,545.47 and 445,148.38 is: 667,659.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,773.12 : 1,214,545.47 = 445,148.38 : x
  2. Step 2: Convert to fraction form
    809,773.12/1,214,545.47 = 445,148.38/x
  3. Step 3: Cross multiply
    809,773.12x = 1,214,545.47 × 445,148.38
  4. Step 4: Simplify right side
    809,773.12x = 540,652,948,406.84
  5. Step 5: Solve for x
    x = 540,652,948,406.84/809,773.12
  6. Step 6: Final answer
    x = 667,659.79

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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.