Home / 1,326,238.88-1,989,746.46-427,662.54

Finding the Fourth Proportional to 1,326,238.88, 1,989,746.46 and 427,662.54

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Solution

The fourth proportional to 1,326,238.88, 1,989,746.46 and 427,662.54 is: 641,618.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,238.88 : 1,989,746.46 = 427,662.54 : x
  2. Step 2: Convert to fraction form
    1,326,238.88/1,989,746.46 = 427,662.54/x
  3. Step 3: Cross multiply
    1,326,238.88x = 1,989,746.46 × 427,662.54
  4. Step 4: Simplify right side
    1,326,238.88x = 850,940,025,039.61
  5. Step 5: Solve for x
    x = 850,940,025,039.61/1,326,238.88
  6. Step 6: Final answer
    x = 641,618.97

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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.