Home / 809,775.12-1,214,548.47-445,150.38

Finding the Fourth Proportional to 809,775.12, 1,214,548.47 and 445,150.38

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Solution

The fourth proportional to 809,775.12, 1,214,548.47 and 445,150.38 is: 667,662.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,775.12 : 1,214,548.47 = 445,150.38 : x
  2. Step 2: Convert to fraction form
    809,775.12/1,214,548.47 = 445,150.38/x
  3. Step 3: Cross multiply
    809,775.12x = 1,214,548.47 × 445,150.38
  4. Step 4: Simplify right side
    809,775.12x = 540,656,712,948.92
  5. Step 5: Solve for x
    x = 540,656,712,948.92/809,775.12
  6. Step 6: Final answer
    x = 667,662.79

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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.