Home / 1,101,998.78-1,520,911.78-612,078.38

Finding the Fourth Proportional to 1,101,998.78, 1,520,911.78 and 612,078.38

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Solution

The fourth proportional to 1,101,998.78, 1,520,911.78 and 612,078.38 is: 844,753.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,998.78 : 1,520,911.78 = 612,078.38 : x
  2. Step 2: Convert to fraction form
    1,101,998.78/1,520,911.78 = 612,078.38/x
  3. Step 3: Cross multiply
    1,101,998.78x = 1,520,911.78 × 612,078.38
  4. Step 4: Simplify right side
    1,101,998.78x = 930,917,210,820.76
  5. Step 5: Solve for x
    x = 930,917,210,820.76/1,101,998.78
  6. Step 6: Final answer
    x = 844,753.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.