Home / 1,276,679.05-1,761,817.08-703,731.58

Finding the Fourth Proportional to 1,276,679.05, 1,761,817.08 and 703,731.58

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Solution

The fourth proportional to 1,276,679.05, 1,761,817.08 and 703,731.58 is: 971,149.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,679.05 : 1,761,817.08 = 703,731.58 : x
  2. Step 2: Convert to fraction form
    1,276,679.05/1,761,817.08 = 703,731.58/x
  3. Step 3: Cross multiply
    1,276,679.05x = 1,761,817.08 × 703,731.58
  4. Step 4: Simplify right side
    1,276,679.05x = 1,239,846,317,379.39
  5. Step 5: Solve for x
    x = 1,239,846,317,379.39/1,276,679.05
  6. Step 6: Final answer
    x = 971,149.58

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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.