Home / 765,726.28-1,148,661.71-225,984.60

Finding the Fourth Proportional to 765,726.28, 1,148,661.71 and 225,984.60

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Solution

The fourth proportional to 765,726.28, 1,148,661.71 and 225,984.60 is: 338,998.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,726.28 : 1,148,661.71 = 225,984.60 : x
  2. Step 2: Convert to fraction form
    765,726.28/1,148,661.71 = 225,984.60/x
  3. Step 3: Cross multiply
    765,726.28x = 1,148,661.71 × 225,984.60
  4. Step 4: Simplify right side
    765,726.28x = 259,579,857,069.67
  5. Step 5: Solve for x
    x = 259,579,857,069.67/765,726.28
  6. Step 6: Final answer
    x = 338,998.23

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Double scale
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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.