Home / 1,221,504.68-1,831,961.78-512,063.76

Finding the Fourth Proportional to 1,221,504.68, 1,831,961.78 and 512,063.76

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Solution

The fourth proportional to 1,221,504.68, 1,831,961.78 and 512,063.76 is: 767,971.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,504.68 : 1,831,961.78 = 512,063.76 : x
  2. Step 2: Convert to fraction form
    1,221,504.68/1,831,961.78 = 512,063.76/x
  3. Step 3: Cross multiply
    1,221,504.68x = 1,831,961.78 × 512,063.76
  4. Step 4: Simplify right side
    1,221,504.68x = 938,081,237,243.09
  5. Step 5: Solve for x
    x = 938,081,237,243.09/1,221,504.68
  6. Step 6: Final answer
    x = 767,971.87

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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.