Home / 1,276,619.42-1,761,713.79-703,712.90

Finding the Fourth Proportional to 1,276,619.42, 1,761,713.79 and 703,712.90

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Solution

The fourth proportional to 1,276,619.42, 1,761,713.79 and 703,712.90 is: 971,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,619.42 : 1,761,713.79 = 703,712.90 : x
  2. Step 2: Convert to fraction form
    1,276,619.42/1,761,713.79 = 703,712.90/x
  3. Step 3: Cross multiply
    1,276,619.42x = 1,761,713.79 × 703,712.90
  4. Step 4: Simplify right side
    1,276,619.42x = 1,239,740,711,322.32
  5. Step 5: Solve for x
    x = 1,239,740,711,322.32/1,276,619.42
  6. Step 6: Final answer
    x = 971,112.22

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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.