Home / 1,222,078.30-1,833,009.77-547,978.68

Finding the Fourth Proportional to 1,222,078.30, 1,833,009.77 and 547,978.68

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Solution

The fourth proportional to 1,222,078.30, 1,833,009.77 and 547,978.68 is: 821,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,078.30 : 1,833,009.77 = 547,978.68 : x
  2. Step 2: Convert to fraction form
    1,222,078.30/1,833,009.77 = 547,978.68/x
  3. Step 3: Cross multiply
    1,222,078.30x = 1,833,009.77 × 547,978.68
  4. Step 4: Simplify right side
    1,222,078.30x = 1,004,450,272,479.27
  5. Step 5: Solve for x
    x = 1,004,450,272,479.27/1,222,078.30
  6. Step 6: Final answer
    x = 821,919.74

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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.