Home / 2,164,878.90-2,987,490.09-1,198,008.90

Finding the Fourth Proportional to 2,164,878.90, 2,987,490.09 and 1,198,008.90

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Solution

The fourth proportional to 2,164,878.90, 2,987,490.09 and 1,198,008.90 is: 1,653,228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,164,878.90 : 2,987,490.09 = 1,198,008.90 : x
  2. Step 2: Convert to fraction form
    2,164,878.90/2,987,490.09 = 1,198,008.90/x
  3. Step 3: Cross multiply
    2,164,878.90x = 2,987,490.09 × 1,198,008.90
  4. Step 4: Simplify right side
    2,164,878.90x = 3,579,039,716,481.80
  5. Step 5: Solve for x
    x = 3,579,039,716,481.80/2,164,878.90
  6. Step 6: Final answer
    x = 1,653,228.60

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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.