Home / 2,189,087.76-3,020,814.18-1,222,279.26

Finding the Fourth Proportional to 2,189,087.76, 3,020,814.18 and 1,222,279.26

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Solution

The fourth proportional to 2,189,087.76, 3,020,814.18 and 1,222,279.26 is: 1,686,674.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,087.76 : 3,020,814.18 = 1,222,279.26 : x
  2. Step 2: Convert to fraction form
    2,189,087.76/3,020,814.18 = 1,222,279.26/x
  3. Step 3: Cross multiply
    2,189,087.76x = 3,020,814.18 × 1,222,279.26
  4. Step 4: Simplify right side
    2,189,087.76x = 3,692,278,520,527.91
  5. Step 5: Solve for x
    x = 3,692,278,520,527.91/2,189,087.76
  6. Step 6: Final answer
    x = 1,686,674.51

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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.