Home / 2,628,979.79-3,628,003.04-1,421,755.79

Finding the Fourth Proportional to 2,628,979.79, 3,628,003.04 and 1,421,755.79

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Solution

The fourth proportional to 2,628,979.79, 3,628,003.04 and 1,421,755.79 is: 1,962,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628,979.79 : 3,628,003.04 = 1,421,755.79 : x
  2. Step 2: Convert to fraction form
    2,628,979.79/3,628,003.04 = 1,421,755.79/x
  3. Step 3: Cross multiply
    2,628,979.79x = 3,628,003.04 × 1,421,755.79
  4. Step 4: Simplify right side
    2,628,979.79x = 5,158,134,303,008.81
  5. Step 5: Solve for x
    x = 5,158,134,303,008.81/2,628,979.79
  6. Step 6: Final answer
    x = 1,962,028.90

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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.