Home / 1,200,872.20-1,801,152.60-452,821

Finding the Fourth Proportional to 1,200,872.20, 1,801,152.60 and 452,821

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Solution

The fourth proportional to 1,200,872.20, 1,801,152.60 and 452,821 is: 679,172.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,872.20 : 1,801,152.60 = 452,821 : x
  2. Step 2: Convert to fraction form
    1,200,872.20/1,801,152.60 = 452,821/x
  3. Step 3: Cross multiply
    1,200,872.20x = 1,801,152.60 × 452,821
  4. Step 4: Simplify right side
    1,200,872.20x = 815,599,721,484.60
  5. Step 5: Solve for x
    x = 815,599,721,484.60/1,200,872.20
  6. Step 6: Final answer
    x = 679,172.79

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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.