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Finding the Fourth Proportional to 445,629.78, 668,397.28 and 125,773.74

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Solution

The fourth proportional to 445,629.78, 668,397.28 and 125,773.74 is: 188,647.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,629.78 : 668,397.28 = 125,773.74 : x
  2. Step 2: Convert to fraction form
    445,629.78/668,397.28 = 125,773.74/x
  3. Step 3: Cross multiply
    445,629.78x = 668,397.28 × 125,773.74
  4. Step 4: Simplify right side
    445,629.78x = 84,066,825,711.43
  5. Step 5: Solve for x
    x = 84,066,825,711.43/445,629.78
  6. Step 6: Final answer
    x = 188,647.23

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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.