Home / 2,088,320.80-3,131,314.80-890,039.20

Finding the Fourth Proportional to 2,088,320.80, 3,131,314.80 and 890,039.20

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Solution

The fourth proportional to 2,088,320.80, 3,131,314.80 and 890,039.20 is: 1,334,561.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088,320.80 : 3,131,314.80 = 890,039.20 : x
  2. Step 2: Convert to fraction form
    2,088,320.80/3,131,314.80 = 890,039.20/x
  3. Step 3: Cross multiply
    2,088,320.80x = 3,131,314.80 × 890,039.20
  4. Step 4: Simplify right side
    2,088,320.80x = 2,786,992,919,540.16
  5. Step 5: Solve for x
    x = 2,786,992,919,540.16/2,088,320.80
  6. Step 6: Final answer
    x = 1,334,561.68

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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.