Home / 765,724.28-1,148,658.71-225,982.60

Finding the Fourth Proportional to 765,724.28, 1,148,658.71 and 225,982.60

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Solution

The fourth proportional to 765,724.28, 1,148,658.71 and 225,982.60 is: 338,995.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,724.28 : 1,148,658.71 = 225,982.60 : x
  2. Step 2: Convert to fraction form
    765,724.28/1,148,658.71 = 225,982.60/x
  3. Step 3: Cross multiply
    765,724.28x = 1,148,658.71 × 225,982.60
  4. Step 4: Simplify right side
    765,724.28x = 259,576,881,798.45
  5. Step 5: Solve for x
    x = 259,576,881,798.45/765,724.28
  6. Step 6: Final answer
    x = 338,995.23

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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.