Home / 856,820.80-1,285,231.20-824,161.60

Finding the Fourth Proportional to 856,820.80, 1,285,231.20 and 824,161.60

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Solution

The fourth proportional to 856,820.80, 1,285,231.20 and 824,161.60 is: 1,236,242.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,820.80 : 1,285,231.20 = 824,161.60 : x
  2. Step 2: Convert to fraction form
    856,820.80/1,285,231.20 = 824,161.60/x
  3. Step 3: Cross multiply
    856,820.80x = 1,285,231.20 × 824,161.60
  4. Step 4: Simplify right side
    856,820.80x = 1,059,238,202,161.92
  5. Step 5: Solve for x
    x = 1,059,238,202,161.92/856,820.80
  6. Step 6: Final answer
    x = 1,236,242.40

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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.