Home / 856,891.56-1,285,447.91-288,027.35

Finding the Fourth Proportional to 856,891.56, 1,285,447.91 and 288,027.35

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Solution

The fourth proportional to 856,891.56, 1,285,447.91 and 288,027.35 is: 432,078.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,891.56 : 1,285,447.91 = 288,027.35 : x
  2. Step 2: Convert to fraction form
    856,891.56/1,285,447.91 = 288,027.35/x
  3. Step 3: Cross multiply
    856,891.56x = 1,285,447.91 × 288,027.35
  4. Step 4: Simplify right side
    856,891.56x = 370,244,147,212.96
  5. Step 5: Solve for x
    x = 370,244,147,212.96/856,891.56
  6. Step 6: Final answer
    x = 432,078.18

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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.