Home / 726,850.85-1,090,280.37-647,257.71

Finding the Fourth Proportional to 726,850.85, 1,090,280.37 and 647,257.71

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Solution

The fourth proportional to 726,850.85, 1,090,280.37 and 647,257.71 is: 970,890.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,850.85 : 1,090,280.37 = 647,257.71 : x
  2. Step 2: Convert to fraction form
    726,850.85/1,090,280.37 = 647,257.71/x
  3. Step 3: Cross multiply
    726,850.85x = 1,090,280.37 × 647,257.71
  4. Step 4: Simplify right side
    726,850.85x = 705,692,375,544.15
  5. Step 5: Solve for x
    x = 705,692,375,544.15/726,850.85
  6. Step 6: Final answer
    x = 970,890.22

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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.