Home / 765,722.28-1,148,655.71-225,980.60

Finding the Fourth Proportional to 765,722.28, 1,148,655.71 and 225,980.60

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Solution

The fourth proportional to 765,722.28, 1,148,655.71 and 225,980.60 is: 338,992.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,722.28 : 1,148,655.71 = 225,980.60 : x
  2. Step 2: Convert to fraction form
    765,722.28/1,148,655.71 = 225,980.60/x
  3. Step 3: Cross multiply
    765,722.28x = 1,148,655.71 × 225,980.60
  4. Step 4: Simplify right side
    765,722.28x = 259,573,902,537.68
  5. Step 5: Solve for x
    x = 259,573,902,537.68/765,722.28
  6. Step 6: Final answer
    x = 338,992.23

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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.