Home / 814,239.43-1,221,369.53-215,195.41

Finding the Fourth Proportional to 814,239.43, 1,221,369.53 and 215,195.41

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Solution

The fourth proportional to 814,239.43, 1,221,369.53 and 215,195.41 is: 322,795.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,239.43 : 1,221,369.53 = 215,195.41 : x
  2. Step 2: Convert to fraction form
    814,239.43/1,221,369.53 = 215,195.41/x
  3. Step 3: Cross multiply
    814,239.43x = 1,221,369.53 × 215,195.41
  4. Step 4: Simplify right side
    814,239.43x = 262,833,116,769.86
  5. Step 5: Solve for x
    x = 262,833,116,769.86/814,239.43
  6. Step 6: Final answer
    x = 322,795.86

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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.