Home / 2,166,282.39-2,989,563.09-1,199,412.65

Finding the Fourth Proportional to 2,166,282.39, 2,989,563.09 and 1,199,412.65

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Solution

The fourth proportional to 2,166,282.39, 2,989,563.09 and 1,199,412.65 is: 1,655,241.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,282.39 : 2,989,563.09 = 1,199,412.65 : x
  2. Step 2: Convert to fraction form
    2,166,282.39/2,989,563.09 = 1,199,412.65/x
  3. Step 3: Cross multiply
    2,166,282.39x = 2,989,563.09 × 1,199,412.65
  4. Step 4: Simplify right side
    2,166,282.39x = 3,585,719,774,278.91
  5. Step 5: Solve for x
    x = 3,585,719,774,278.91/2,166,282.39
  6. Step 6: Final answer
    x = 1,655,241.16

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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.