Home / 726,994.69-1,089,987.05-321,966.19

Finding the Fourth Proportional to 726,994.69, 1,089,987.05 and 321,966.19

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Solution

The fourth proportional to 726,994.69, 1,089,987.05 and 321,966.19 is: 482,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,994.69 : 1,089,987.05 = 321,966.19 : x
  2. Step 2: Convert to fraction form
    726,994.69/1,089,987.05 = 321,966.19/x
  3. Step 3: Cross multiply
    726,994.69x = 1,089,987.05 × 321,966.19
  4. Step 4: Simplify right side
    726,994.69x = 350,938,971,863.00
  5. Step 5: Solve for x
    x = 350,938,971,863.00/726,994.69
  6. Step 6: Final answer
    x = 482,725.63

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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.