Home / 2,240,115.91-3,091,354.20-1,221,520.66

Finding the Fourth Proportional to 2,240,115.91, 3,091,354.20 and 1,221,520.66

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Solution

The fourth proportional to 2,240,115.91, 3,091,354.20 and 1,221,520.66 is: 1,685,695.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240,115.91 : 3,091,354.20 = 1,221,520.66 : x
  2. Step 2: Convert to fraction form
    2,240,115.91/3,091,354.20 = 1,221,520.66/x
  3. Step 3: Cross multiply
    2,240,115.91x = 3,091,354.20 × 1,221,520.66
  4. Step 4: Simplify right side
    2,240,115.91x = 3,776,153,014,949.39
  5. Step 5: Solve for x
    x = 3,776,153,014,949.39/2,240,115.91
  6. Step 6: Final answer
    x = 1,685,695.37

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1.5x scale

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.