Home / 1,276,161.39-1,761,139.77-703,238.52

Finding the Fourth Proportional to 1,276,161.39, 1,761,139.77 and 703,238.52

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Solution

The fourth proportional to 1,276,161.39, 1,761,139.77 and 703,238.52 is: 970,489.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,161.39 : 1,761,139.77 = 703,238.52 : x
  2. Step 2: Convert to fraction form
    1,276,161.39/1,761,139.77 = 703,238.52/x
  3. Step 3: Cross multiply
    1,276,161.39x = 1,761,139.77 × 703,238.52
  4. Step 4: Simplify right side
    1,276,161.39x = 1,238,501,325,367.94
  5. Step 5: Solve for x
    x = 1,238,501,325,367.94/1,276,161.39
  6. Step 6: Final answer
    x = 970,489.58

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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.