Home / 2,780,546.80-4,170,820.20-985,457.20

Finding the Fourth Proportional to 2,780,546.80, 4,170,820.20 and 985,457.20

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Solution

The fourth proportional to 2,780,546.80, 4,170,820.20 and 985,457.20 is: 1,478,185.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,546.80 : 4,170,820.20 = 985,457.20 : x
  2. Step 2: Convert to fraction form
    2,780,546.80/4,170,820.20 = 985,457.20/x
  3. Step 3: Cross multiply
    2,780,546.80x = 4,170,820.20 × 985,457.20
  4. Step 4: Simplify right side
    2,780,546.80x = 4,110,164,795,995.44
  5. Step 5: Solve for x
    x = 4,110,164,795,995.44/2,780,546.80
  6. Step 6: Final answer
    x = 1,478,185.80

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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.