Home / 770,553.71-1,155,643.61-321,029.33

Finding the Fourth Proportional to 770,553.71, 1,155,643.61 and 321,029.33

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Solution

The fourth proportional to 770,553.71, 1,155,643.61 and 321,029.33 is: 481,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,553.71 : 1,155,643.61 = 321,029.33 : x
  2. Step 2: Convert to fraction form
    770,553.71/1,155,643.61 = 321,029.33/x
  3. Step 3: Cross multiply
    770,553.71x = 1,155,643.61 × 321,029.33
  4. Step 4: Simplify right side
    770,553.71x = 370,995,486,453.72
  5. Step 5: Solve for x
    x = 370,995,486,453.72/770,553.71
  6. Step 6: Final answer
    x = 481,466.10

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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.