Home / 1,660,820.38-2,491,230.60-398,648.01

Finding the Fourth Proportional to 1,660,820.38, 2,491,230.60 and 398,648.01

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Solution

The fourth proportional to 1,660,820.38, 2,491,230.60 and 398,648.01 is: 597,972.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,660,820.38 : 2,491,230.60 = 398,648.01 : x
  2. Step 2: Convert to fraction form
    1,660,820.38/2,491,230.60 = 398,648.01/x
  3. Step 3: Cross multiply
    1,660,820.38x = 2,491,230.60 × 398,648.01
  4. Step 4: Simplify right side
    1,660,820.38x = 993,124,109,681.57
  5. Step 5: Solve for x
    x = 993,124,109,681.57/1,660,820.38
  6. Step 6: Final answer
    x = 597,972.02

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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.