Home / 870,815.14-1,305,538.25-550,292.86

Finding the Fourth Proportional to 870,815.14, 1,305,538.25 and 550,292.86

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Solution

The fourth proportional to 870,815.14, 1,305,538.25 and 550,292.86 is: 825,006.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,815.14 : 1,305,538.25 = 550,292.86 : x
  2. Step 2: Convert to fraction form
    870,815.14/1,305,538.25 = 550,292.86/x
  3. Step 3: Cross multiply
    870,815.14x = 1,305,538.25 × 550,292.86
  4. Step 4: Simplify right side
    870,815.14x = 718,428,382,692.67
  5. Step 5: Solve for x
    x = 718,428,382,692.67/870,815.14
  6. Step 6: Final answer
    x = 825,006.76

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1.5x scale

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.