Home / 2,801,480.40-4,202,220.60-2,780,485.20

Finding the Fourth Proportional to 2,801,480.40, 4,202,220.60 and 2,780,485.20

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Solution

The fourth proportional to 2,801,480.40, 4,202,220.60 and 2,780,485.20 is: 4,170,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,801,480.40 : 4,202,220.60 = 2,780,485.20 : x
  2. Step 2: Convert to fraction form
    2,801,480.40/4,202,220.60 = 2,780,485.20/x
  3. Step 3: Cross multiply
    2,801,480.40x = 4,202,220.60 × 2,780,485.20
  4. Step 4: Simplify right side
    2,801,480.40x = 11,684,212,185,435.12
  5. Step 5: Solve for x
    x = 11,684,212,185,435.12/2,801,480.40
  6. Step 6: Final answer
    x = 4,170,727.80

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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.