Home / 726,583.07-1,090,119.62-321,720.01

Finding the Fourth Proportional to 726,583.07, 1,090,119.62 and 321,720.01

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Solution

The fourth proportional to 726,583.07, 1,090,119.62 and 321,720.01 is: 482,688.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,583.07 : 1,090,119.62 = 321,720.01 : x
  2. Step 2: Convert to fraction form
    726,583.07/1,090,119.62 = 321,720.01/x
  3. Step 3: Cross multiply
    726,583.07x = 1,090,119.62 × 321,720.01
  4. Step 4: Simplify right side
    726,583.07x = 350,713,293,282.80
  5. Step 5: Solve for x
    x = 350,713,293,282.80/726,583.07
  6. Step 6: Final answer
    x = 482,688.50

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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.