Home / 1,189,620.64-1,780,698.48-626,949.28

Finding the Fourth Proportional to 1,189,620.64, 1,780,698.48 and 626,949.28

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Solution

The fourth proportional to 1,189,620.64, 1,780,698.48 and 626,949.28 is: 938,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,620.64 : 1,780,698.48 = 626,949.28 : x
  2. Step 2: Convert to fraction form
    1,189,620.64/1,780,698.48 = 626,949.28/x
  3. Step 3: Cross multiply
    1,189,620.64x = 1,780,698.48 × 626,949.28
  4. Step 4: Simplify right side
    1,189,620.64x = 1,116,407,629,933.09
  5. Step 5: Solve for x
    x = 1,116,407,629,933.09/1,189,620.64
  6. Step 6: Final answer
    x = 938,456.84

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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.