Home / 765,684.12-1,148,557.88-225,940.41

Finding the Fourth Proportional to 765,684.12, 1,148,557.88 and 225,940.41

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Solution

The fourth proportional to 765,684.12, 1,148,557.88 and 225,940.41 is: 338,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,684.12 : 1,148,557.88 = 225,940.41 : x
  2. Step 2: Convert to fraction form
    765,684.12/1,148,557.88 = 225,940.41/x
  3. Step 3: Cross multiply
    765,684.12x = 1,148,557.88 × 225,940.41
  4. Step 4: Simplify right side
    765,684.12x = 259,505,637,186.23
  5. Step 5: Solve for x
    x = 259,505,637,186.23/765,684.12
  6. Step 6: Final answer
    x = 338,919.97

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1.5x scale

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.