Home / 2,080,805.80-3,121,208.70-661,005.40

Finding the Fourth Proportional to 2,080,805.80, 3,121,208.70 and 661,005.40

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Solution

The fourth proportional to 2,080,805.80, 3,121,208.70 and 661,005.40 is: 991,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080,805.80 : 3,121,208.70 = 661,005.40 : x
  2. Step 2: Convert to fraction form
    2,080,805.80/3,121,208.70 = 661,005.40/x
  3. Step 3: Cross multiply
    2,080,805.80x = 3,121,208.70 × 661,005.40
  4. Step 4: Simplify right side
    2,080,805.80x = 2,063,135,805,226.98
  5. Step 5: Solve for x
    x = 2,063,135,805,226.98/2,080,805.80
  6. Step 6: Final answer
    x = 991,508.10

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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.