Home / 1,938,540.78-2,907,811.20-872,337.24

Finding the Fourth Proportional to 1,938,540.78, 2,907,811.20 and 872,337.24

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Solution

The fourth proportional to 1,938,540.78, 2,907,811.20 and 872,337.24 is: 1,308,505.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,938,540.78 : 2,907,811.20 = 872,337.24 : x
  2. Step 2: Convert to fraction form
    1,938,540.78/2,907,811.20 = 872,337.24/x
  3. Step 3: Cross multiply
    1,938,540.78x = 2,907,811.20 × 872,337.24
  4. Step 4: Simplify right side
    1,938,540.78x = 2,536,591,996,649.09
  5. Step 5: Solve for x
    x = 2,536,591,996,649.09/1,938,540.78
  6. Step 6: Final answer
    x = 1,308,505.87

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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.