Home / 1,276,145.70-1,761,159.51-703,185.72

Finding the Fourth Proportional to 1,276,145.70, 1,761,159.51 and 703,185.72

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Solution

The fourth proportional to 1,276,145.70, 1,761,159.51 and 703,185.72 is: 970,439.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,145.70 : 1,761,159.51 = 703,185.72 : x
  2. Step 2: Convert to fraction form
    1,276,145.70/1,761,159.51 = 703,185.72/x
  3. Step 3: Cross multiply
    1,276,145.70x = 1,761,159.51 × 703,185.72
  4. Step 4: Simplify right side
    1,276,145.70x = 1,238,422,218,074.20
  5. Step 5: Solve for x
    x = 1,238,422,218,074.20/1,276,145.70
  6. Step 6: Final answer
    x = 970,439.52

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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.