Home / 680,821.20-1,021,231.80-182,185.20

Finding the Fourth Proportional to 680,821.20, 1,021,231.80 and 182,185.20

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Solution

The fourth proportional to 680,821.20, 1,021,231.80 and 182,185.20 is: 273,277.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,821.20 : 1,021,231.80 = 182,185.20 : x
  2. Step 2: Convert to fraction form
    680,821.20/1,021,231.80 = 182,185.20/x
  3. Step 3: Cross multiply
    680,821.20x = 1,021,231.80 × 182,185.20
  4. Step 4: Simplify right side
    680,821.20x = 186,053,319,729.36
  5. Step 5: Solve for x
    x = 186,053,319,729.36/680,821.20
  6. Step 6: Final answer
    x = 273,277.80

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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.