Home / 1,728,178.80-2,587,732.20-1,219,995.60

Finding the Fourth Proportional to 1,728,178.80, 2,587,732.20 and 1,219,995.60

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Solution

The fourth proportional to 1,728,178.80, 2,587,732.20 and 1,219,995.60 is: 1,826,791.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,728,178.80 : 2,587,732.20 = 1,219,995.60 : x
  2. Step 2: Convert to fraction form
    1,728,178.80/2,587,732.20 = 1,219,995.60/x
  3. Step 3: Cross multiply
    1,728,178.80x = 2,587,732.20 × 1,219,995.60
  4. Step 4: Simplify right side
    1,728,178.80x = 3,157,021,897,978.32
  5. Step 5: Solve for x
    x = 3,157,021,897,978.32/1,728,178.80
  6. Step 6: Final answer
    x = 1,826,791.24

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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.