Home / 870,001.98-1,199,910.15-718,836.54

Finding the Fourth Proportional to 870,001.98, 1,199,910.15 and 718,836.54

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Solution

The fourth proportional to 870,001.98, 1,199,910.15 and 718,836.54 is: 991,422.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,001.98 : 1,199,910.15 = 718,836.54 : x
  2. Step 2: Convert to fraction form
    870,001.98/1,199,910.15 = 718,836.54/x
  3. Step 3: Cross multiply
    870,001.98x = 1,199,910.15 × 718,836.54
  4. Step 4: Simplify right side
    870,001.98x = 862,539,260,536.88
  5. Step 5: Solve for x
    x = 862,539,260,536.88/870,001.98
  6. Step 6: Final answer
    x = 991,422.18

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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.