Home / 794,128.28-1,191,414.78-321,145.88

Finding the Fourth Proportional to 794,128.28, 1,191,414.78 and 321,145.88

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Solution

The fourth proportional to 794,128.28, 1,191,414.78 and 321,145.88 is: 481,808.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    794,128.28 : 1,191,414.78 = 321,145.88 : x
  2. Step 2: Convert to fraction form
    794,128.28/1,191,414.78 = 321,145.88/x
  3. Step 3: Cross multiply
    794,128.28x = 1,191,414.78 × 321,145.88
  4. Step 4: Simplify right side
    794,128.28x = 382,617,947,968.11
  5. Step 5: Solve for x
    x = 382,617,947,968.11/794,128.28
  6. Step 6: Final answer
    x = 481,808.74

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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.