Home / 2,638,906.28-3,957,815.10-1,289,683.88

Finding the Fourth Proportional to 2,638,906.28, 3,957,815.10 and 1,289,683.88

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Solution

The fourth proportional to 2,638,906.28, 3,957,815.10 and 1,289,683.88 is: 1,934,259.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,906.28 : 3,957,815.10 = 1,289,683.88 : x
  2. Step 2: Convert to fraction form
    2,638,906.28/3,957,815.10 = 1,289,683.88/x
  3. Step 3: Cross multiply
    2,638,906.28x = 3,957,815.10 × 1,289,683.88
  4. Step 4: Simplify right side
    2,638,906.28x = 5,104,330,334,490.59
  5. Step 5: Solve for x
    x = 5,104,330,334,490.59/2,638,906.28
  6. Step 6: Final answer
    x = 1,934,259.80

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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.