Home / 3,431,809.92-4,736,121.60-1,981,566.40

Finding the Fourth Proportional to 3,431,809.92, 4,736,121.60 and 1,981,566.40

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Solution

The fourth proportional to 3,431,809.92, 4,736,121.60 and 1,981,566.40 is: 2,734,690.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431,809.92 : 4,736,121.60 = 1,981,566.40 : x
  2. Step 2: Convert to fraction form
    3,431,809.92/4,736,121.60 = 1,981,566.40/x
  3. Step 3: Cross multiply
    3,431,809.92x = 4,736,121.60 × 1,981,566.40
  4. Step 4: Simplify right side
    3,431,809.92x = 9,384,939,428,874.24
  5. Step 5: Solve for x
    x = 9,384,939,428,874.24/3,431,809.92
  6. Step 6: Final answer
    x = 2,734,690.92

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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.