Home / 3,519,612.80-5,277,280.80-1,387,239.20

Finding the Fourth Proportional to 3,519,612.80, 5,277,280.80 and 1,387,239.20

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Solution

The fourth proportional to 3,519,612.80, 5,277,280.80 and 1,387,239.20 is: 2,080,015.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519,612.80 : 5,277,280.80 = 1,387,239.20 : x
  2. Step 2: Convert to fraction form
    3,519,612.80/5,277,280.80 = 1,387,239.20/x
  3. Step 3: Cross multiply
    3,519,612.80x = 5,277,280.80 × 1,387,239.20
  4. Step 4: Simplify right side
    3,519,612.80x = 7,320,850,795,167.36
  5. Step 5: Solve for x
    x = 7,320,850,795,167.36/3,519,612.80
  6. Step 6: Final answer
    x = 2,080,015.96

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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.