Home / 1,285,837.52-1,928,770.92-486,902.12

Finding the Fourth Proportional to 1,285,837.52, 1,928,770.92 and 486,902.12

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Solution

The fourth proportional to 1,285,837.52, 1,928,770.92 and 486,902.12 is: 730,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,837.52 : 1,928,770.92 = 486,902.12 : x
  2. Step 2: Convert to fraction form
    1,285,837.52/1,928,770.92 = 486,902.12/x
  3. Step 3: Cross multiply
    1,285,837.52x = 1,928,770.92 × 486,902.12
  4. Step 4: Simplify right side
    1,285,837.52x = 939,122,649,942.35
  5. Step 5: Solve for x
    x = 939,122,649,942.35/1,285,837.52
  6. Step 6: Final answer
    x = 730,358.72

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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.