Home / 1,221,118.58-1,831,217.78-511,195.70

Finding the Fourth Proportional to 1,221,118.58, 1,831,217.78 and 511,195.70

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Solution

The fourth proportional to 1,221,118.58, 1,831,217.78 and 511,195.70 is: 766,600.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,118.58 : 1,831,217.78 = 511,195.70 : x
  2. Step 2: Convert to fraction form
    1,221,118.58/1,831,217.78 = 511,195.70/x
  3. Step 3: Cross multiply
    1,221,118.58x = 1,831,217.78 × 511,195.70
  4. Step 4: Simplify right side
    1,221,118.58x = 936,110,654,899.55
  5. Step 5: Solve for x
    x = 936,110,654,899.55/1,221,118.58
  6. Step 6: Final answer
    x = 766,600.94

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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.