Home / 780,418.80-1,169,850.60-358,959.60

Finding the Fourth Proportional to 780,418.80, 1,169,850.60 and 358,959.60

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Solution

The fourth proportional to 780,418.80, 1,169,850.60 and 358,959.60 is: 538,081.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,418.80 : 1,169,850.60 = 358,959.60 : x
  2. Step 2: Convert to fraction form
    780,418.80/1,169,850.60 = 358,959.60/x
  3. Step 3: Cross multiply
    780,418.80x = 1,169,850.60 × 358,959.60
  4. Step 4: Simplify right side
    780,418.80x = 419,929,103,435.76
  5. Step 5: Solve for x
    x = 419,929,103,435.76/780,418.80
  6. Step 6: Final answer
    x = 538,081.74

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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.