Home / 821,220.53-1,231,833.71-252,597.79

Finding the Fourth Proportional to 821,220.53, 1,231,833.71 and 252,597.79

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Solution

The fourth proportional to 821,220.53, 1,231,833.71 and 252,597.79 is: 378,897.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,220.53 : 1,231,833.71 = 252,597.79 : x
  2. Step 2: Convert to fraction form
    821,220.53/1,231,833.71 = 252,597.79/x
  3. Step 3: Cross multiply
    821,220.53x = 1,231,833.71 × 252,597.79
  4. Step 4: Simplify right side
    821,220.53x = 311,158,473,543.93
  5. Step 5: Solve for x
    x = 311,158,473,543.93/821,220.53
  6. Step 6: Final answer
    x = 378,897.58

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Similar ratio
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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.