Home / 2,120,023-2,925,631.74-1,215,129.88

Finding the Fourth Proportional to 2,120,023, 2,925,631.74 and 1,215,129.88

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Solution

The fourth proportional to 2,120,023, 2,925,631.74 and 1,215,129.88 is: 1,676,879.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,023 : 2,925,631.74 = 1,215,129.88 : x
  2. Step 2: Convert to fraction form
    2,120,023/2,925,631.74 = 1,215,129.88/x
  3. Step 3: Cross multiply
    2,120,023x = 2,925,631.74 × 1,215,129.88
  4. Step 4: Simplify right side
    2,120,023x = 3,555,022,545,150.39
  5. Step 5: Solve for x
    x = 3,555,022,545,150.39/2,120,023
  6. Step 6: Final answer
    x = 1,676,879.23

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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.