Home / 2,091,803.80-3,138,143.10-672,003.40

Finding the Fourth Proportional to 2,091,803.80, 3,138,143.10 and 672,003.40

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Solution

The fourth proportional to 2,091,803.80, 3,138,143.10 and 672,003.40 is: 1,008,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,091,803.80 : 3,138,143.10 = 672,003.40 : x
  2. Step 2: Convert to fraction form
    2,091,803.80/3,138,143.10 = 672,003.40/x
  3. Step 3: Cross multiply
    2,091,803.80x = 3,138,143.10 × 672,003.40
  4. Step 4: Simplify right side
    2,091,803.80x = 2,108,842,832,886.54
  5. Step 5: Solve for x
    x = 2,108,842,832,886.54/2,091,803.80
  6. Step 6: Final answer
    x = 1,008,145.62

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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.