Home / 720,917.91-1,081,450.83-272,016.52

Finding the Fourth Proportional to 720,917.91, 1,081,450.83 and 272,016.52

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Solution

The fourth proportional to 720,917.91, 1,081,450.83 and 272,016.52 is: 408,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,917.91 : 1,081,450.83 = 272,016.52 : x
  2. Step 2: Convert to fraction form
    720,917.91/1,081,450.83 = 272,016.52/x
  3. Step 3: Cross multiply
    720,917.91x = 1,081,450.83 × 272,016.52
  4. Step 4: Simplify right side
    720,917.91x = 294,172,491,327.71
  5. Step 5: Solve for x
    x = 294,172,491,327.71/720,917.91
  6. Step 6: Final answer
    x = 408,052.69

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1.5x scale

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.