Home / 1,070,380.80-1,605,571.20-439,747.20

Finding the Fourth Proportional to 1,070,380.80, 1,605,571.20 and 439,747.20

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Solution

The fourth proportional to 1,070,380.80, 1,605,571.20 and 439,747.20 is: 659,620.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,070,380.80 : 1,605,571.20 = 439,747.20 : x
  2. Step 2: Convert to fraction form
    1,070,380.80/1,605,571.20 = 439,747.20/x
  3. Step 3: Cross multiply
    1,070,380.80x = 1,605,571.20 × 439,747.20
  4. Step 4: Simplify right side
    1,070,380.80x = 706,045,439,600.64
  5. Step 5: Solve for x
    x = 706,045,439,600.64/1,070,380.80
  6. Step 6: Final answer
    x = 659,620.80

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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.