Home / 681,809.68-1,022,619.64-361,821.52

Finding the Fourth Proportional to 681,809.68, 1,022,619.64 and 361,821.52

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Solution

The fourth proportional to 681,809.68, 1,022,619.64 and 361,821.52 is: 542,681.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,809.68 : 1,022,619.64 = 361,821.52 : x
  2. Step 2: Convert to fraction form
    681,809.68/1,022,619.64 = 361,821.52/x
  3. Step 3: Cross multiply
    681,809.68x = 1,022,619.64 × 361,821.52
  4. Step 4: Simplify right side
    681,809.68x = 370,005,792,526.65
  5. Step 5: Solve for x
    x = 370,005,792,526.65/681,809.68
  6. Step 6: Final answer
    x = 542,681.93

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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.