Home / 722,288.80-1,083,433.20-543,829.60

Finding the Fourth Proportional to 722,288.80, 1,083,433.20 and 543,829.60

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Solution

The fourth proportional to 722,288.80, 1,083,433.20 and 543,829.60 is: 815,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,288.80 : 1,083,433.20 = 543,829.60 : x
  2. Step 2: Convert to fraction form
    722,288.80/1,083,433.20 = 543,829.60/x
  3. Step 3: Cross multiply
    722,288.80x = 1,083,433.20 × 543,829.60
  4. Step 4: Simplify right side
    722,288.80x = 589,203,043,782.72
  5. Step 5: Solve for x
    x = 589,203,043,782.72/722,288.80
  6. Step 6: Final answer
    x = 815,744.40

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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.