Home / 2,798,200.90-4,199,029.35-1,115,128.90

Finding the Fourth Proportional to 2,798,200.90, 4,199,029.35 and 1,115,128.90

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Solution

The fourth proportional to 2,798,200.90, 4,199,029.35 and 1,115,128.90 is: 1,673,381.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,798,200.90 : 4,199,029.35 = 1,115,128.90 : x
  2. Step 2: Convert to fraction form
    2,798,200.90/4,199,029.35 = 1,115,128.90/x
  3. Step 3: Cross multiply
    2,798,200.90x = 4,199,029.35 × 1,115,128.90
  4. Step 4: Simplify right side
    2,798,200.90x = 4,682,458,980,133.21
  5. Step 5: Solve for x
    x = 4,682,458,980,133.21/2,798,200.90
  6. Step 6: Final answer
    x = 1,673,381.99

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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.