Home / 1,359,236.37-1,876,031.61-862,198.78

Finding the Fourth Proportional to 1,359,236.37, 1,876,031.61 and 862,198.78

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Solution

The fourth proportional to 1,359,236.37, 1,876,031.61 and 862,198.78 is: 1,190,015.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,236.37 : 1,876,031.61 = 862,198.78 : x
  2. Step 2: Convert to fraction form
    1,359,236.37/1,876,031.61 = 862,198.78/x
  3. Step 3: Cross multiply
    1,359,236.37x = 1,876,031.61 × 862,198.78
  4. Step 4: Simplify right side
    1,359,236.37x = 1,617,512,163,402.60
  5. Step 5: Solve for x
    x = 1,617,512,163,402.60/1,359,236.37
  6. Step 6: Final answer
    x = 1,190,015.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.