Home / 1,272,180.80-1,906,477.92-1,004,763.20

Finding the Fourth Proportional to 1,272,180.80, 1,906,477.92 and 1,004,763.20

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Solution

The fourth proportional to 1,272,180.80, 1,906,477.92 and 1,004,763.20 is: 1,505,728.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,180.80 : 1,906,477.92 = 1,004,763.20 : x
  2. Step 2: Convert to fraction form
    1,272,180.80/1,906,477.92 = 1,004,763.20/x
  3. Step 3: Cross multiply
    1,272,180.80x = 1,906,477.92 × 1,004,763.20
  4. Step 4: Simplify right side
    1,272,180.80x = 1,915,558,855,628.54
  5. Step 5: Solve for x
    x = 1,915,558,855,628.54/1,272,180.80
  6. Step 6: Final answer
    x = 1,505,728.47

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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.