Home / 1,380,512.36-1,905,193.50-836,695.64

Finding the Fourth Proportional to 1,380,512.36, 1,905,193.50 and 836,695.64

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Solution

The fourth proportional to 1,380,512.36, 1,905,193.50 and 836,695.64 is: 1,154,692.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,512.36 : 1,905,193.50 = 836,695.64 : x
  2. Step 2: Convert to fraction form
    1,380,512.36/1,905,193.50 = 836,695.64/x
  3. Step 3: Cross multiply
    1,380,512.36x = 1,905,193.50 × 836,695.64
  4. Step 4: Simplify right side
    1,380,512.36x = 1,594,067,094,806.34
  5. Step 5: Solve for x
    x = 1,594,067,094,806.34/1,380,512.36
  6. Step 6: Final answer
    x = 1,154,692.37

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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.