Home / 1,269,327.52-1,751,929.83-861,560.77

Finding the Fourth Proportional to 1,269,327.52, 1,751,929.83 and 861,560.77

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Solution

The fourth proportional to 1,269,327.52, 1,751,929.83 and 861,560.77 is: 1,189,128.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,327.52 : 1,751,929.83 = 861,560.77 : x
  2. Step 2: Convert to fraction form
    1,269,327.52/1,751,929.83 = 861,560.77/x
  3. Step 3: Cross multiply
    1,269,327.52x = 1,751,929.83 × 861,560.77
  4. Step 4: Simplify right side
    1,269,327.52x = 1,509,394,013,320.77
  5. Step 5: Solve for x
    x = 1,509,394,013,320.77/1,269,327.52
  6. Step 6: Final answer
    x = 1,189,128.88

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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.