Home / 870,964.20-1,304,718.30-767,053.80

Finding the Fourth Proportional to 870,964.20, 1,304,718.30 and 767,053.80

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Solution

The fourth proportional to 870,964.20, 1,304,718.30 and 767,053.80 is: 1,149,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,964.20 : 1,304,718.30 = 767,053.80 : x
  2. Step 2: Convert to fraction form
    870,964.20/1,304,718.30 = 767,053.80/x
  3. Step 3: Cross multiply
    870,964.20x = 1,304,718.30 × 767,053.80
  4. Step 4: Simplify right side
    870,964.20x = 1,000,789,129,944.54
  5. Step 5: Solve for x
    x = 1,000,789,129,944.54/870,964.20
  6. Step 6: Final answer
    x = 1,149,058.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.