Home / 1,990,717.90-2,986,076.85-1,091,812.30

Finding the Fourth Proportional to 1,990,717.90, 2,986,076.85 and 1,091,812.30

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Solution

The fourth proportional to 1,990,717.90, 2,986,076.85 and 1,091,812.30 is: 1,637,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,717.90 : 2,986,076.85 = 1,091,812.30 : x
  2. Step 2: Convert to fraction form
    1,990,717.90/2,986,076.85 = 1,091,812.30/x
  3. Step 3: Cross multiply
    1,990,717.90x = 2,986,076.85 × 1,091,812.30
  4. Step 4: Simplify right side
    1,990,717.90x = 3,260,235,433,575.26
  5. Step 5: Solve for x
    x = 3,260,235,433,575.26/1,990,717.90
  6. Step 6: Final answer
    x = 1,637,718.45

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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.