Home / 1,555,690.38-2,146,852.72-876,651.18

Finding the Fourth Proportional to 1,555,690.38, 2,146,852.72 and 876,651.18

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Solution

The fourth proportional to 1,555,690.38, 2,146,852.72 and 876,651.18 is: 1,209,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,690.38 : 2,146,852.72 = 876,651.18 : x
  2. Step 2: Convert to fraction form
    1,555,690.38/2,146,852.72 = 876,651.18/x
  3. Step 3: Cross multiply
    1,555,690.38x = 2,146,852.72 × 876,651.18
  4. Step 4: Simplify right side
    1,555,690.38x = 1,882,040,970,274.21
  5. Step 5: Solve for x
    x = 1,882,040,970,274.21/1,555,690.38
  6. Step 6: Final answer
    x = 1,209,778.63

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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.