Home / 726,882.12-1,089,649.26-321,858.45

Finding the Fourth Proportional to 726,882.12, 1,089,649.26 and 321,858.45

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Solution

The fourth proportional to 726,882.12, 1,089,649.26 and 321,858.45 is: 482,489.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,882.12 : 1,089,649.26 = 321,858.45 : x
  2. Step 2: Convert to fraction form
    726,882.12/1,089,649.26 = 321,858.45/x
  3. Step 3: Cross multiply
    726,882.12x = 1,089,649.26 × 321,858.45
  4. Step 4: Simplify right side
    726,882.12x = 350,712,821,867.25
  5. Step 5: Solve for x
    x = 350,712,821,867.25/726,882.12
  6. Step 6: Final answer
    x = 482,489.27

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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.