Home / 734,650.40-1,100,809.20-485,040.80

Finding the Fourth Proportional to 734,650.40, 1,100,809.20 and 485,040.80

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Solution

The fourth proportional to 734,650.40, 1,100,809.20 and 485,040.80 is: 726,791.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,650.40 : 1,100,809.20 = 485,040.80 : x
  2. Step 2: Convert to fraction form
    734,650.40/1,100,809.20 = 485,040.80/x
  3. Step 3: Cross multiply
    734,650.40x = 1,100,809.20 × 485,040.80
  4. Step 4: Simplify right side
    734,650.40x = 533,937,375,015.36
  5. Step 5: Solve for x
    x = 533,937,375,015.36/734,650.40
  6. Step 6: Final answer
    x = 726,791.10

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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.