Home / 2,780,964.80-4,171,447.20-985,875.20

Finding the Fourth Proportional to 2,780,964.80, 4,171,447.20 and 985,875.20

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Solution

The fourth proportional to 2,780,964.80, 4,171,447.20 and 985,875.20 is: 1,478,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780,964.80 : 4,171,447.20 = 985,875.20 : x
  2. Step 2: Convert to fraction form
    2,780,964.80/4,171,447.20 = 985,875.20/x
  3. Step 3: Cross multiply
    2,780,964.80x = 4,171,447.20 × 985,875.20
  4. Step 4: Simplify right side
    2,780,964.80x = 4,112,526,342,589.44
  5. Step 5: Solve for x
    x = 4,112,526,342,589.44/2,780,964.80
  6. Step 6: Final answer
    x = 1,478,812.80

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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.