Home / 1,216,261.48-1,678,039.69-780,922.73

Finding the Fourth Proportional to 1,216,261.48, 1,678,039.69 and 780,922.73

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Solution

The fourth proportional to 1,216,261.48, 1,678,039.69 and 780,922.73 is: 1,077,415.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,261.48 : 1,678,039.69 = 780,922.73 : x
  2. Step 2: Convert to fraction form
    1,216,261.48/1,678,039.69 = 780,922.73/x
  3. Step 3: Cross multiply
    1,216,261.48x = 1,678,039.69 × 780,922.73
  4. Step 4: Simplify right side
    1,216,261.48x = 1,310,419,336,323.85
  5. Step 5: Solve for x
    x = 1,310,419,336,323.85/1,216,261.48
  6. Step 6: Final answer
    x = 1,077,415.80

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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.