Home / 1,236,200.34-1,705,761.61-720,039.18

Finding the Fourth Proportional to 1,236,200.34, 1,705,761.61 and 720,039.18

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Solution

The fourth proportional to 1,236,200.34, 1,705,761.61 and 720,039.18 is: 993,540.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,236,200.34 : 1,705,761.61 = 720,039.18 : x
  2. Step 2: Convert to fraction form
    1,236,200.34/1,705,761.61 = 720,039.18/x
  3. Step 3: Cross multiply
    1,236,200.34x = 1,705,761.61 × 720,039.18
  4. Step 4: Simplify right side
    1,236,200.34x = 1,228,215,190,939.88
  5. Step 5: Solve for x
    x = 1,228,215,190,939.88/1,236,200.34
  6. Step 6: Final answer
    x = 993,540.57

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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.