Home / 865,906.40-1,300,609.20-836,163.20

Finding the Fourth Proportional to 865,906.40, 1,300,609.20 and 836,163.20

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Solution

The fourth proportional to 865,906.40, 1,300,609.20 and 836,163.20 is: 1,255,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,906.40 : 1,300,609.20 = 836,163.20 : x
  2. Step 2: Convert to fraction form
    865,906.40/1,300,609.20 = 836,163.20/x
  3. Step 3: Cross multiply
    865,906.40x = 1,300,609.20 × 836,163.20
  4. Step 4: Simplify right side
    865,906.40x = 1,087,521,550,621.44
  5. Step 5: Solve for x
    x = 1,087,521,550,621.44/865,906.40
  6. Step 6: Final answer
    x = 1,255,934.30

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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.