Home / 726,465.66-1,089,943.72-321,602.03

Finding the Fourth Proportional to 726,465.66, 1,089,943.72 and 321,602.03

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Solution

The fourth proportional to 726,465.66, 1,089,943.72 and 321,602.03 is: 482,511.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,465.66 : 1,089,943.72 = 321,602.03 : x
  2. Step 2: Convert to fraction form
    726,465.66/1,089,943.72 = 321,602.03/x
  3. Step 3: Cross multiply
    726,465.66x = 1,089,943.72 × 321,602.03
  4. Step 4: Simplify right side
    726,465.66x = 350,528,112,937.75
  5. Step 5: Solve for x
    x = 350,528,112,937.75/726,465.66
  6. Step 6: Final answer
    x = 482,511.61

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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.