Home / 1,138,912.60-1,571,620.45-629,574.88

Finding the Fourth Proportional to 1,138,912.60, 1,571,620.45 and 629,574.88

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Solution

The fourth proportional to 1,138,912.60, 1,571,620.45 and 629,574.88 is: 868,769.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,912.60 : 1,571,620.45 = 629,574.88 : x
  2. Step 2: Convert to fraction form
    1,138,912.60/1,571,620.45 = 629,574.88/x
  3. Step 3: Cross multiply
    1,138,912.60x = 1,571,620.45 × 629,574.88
  4. Step 4: Simplify right side
    1,138,912.60x = 989,452,745,208.32
  5. Step 5: Solve for x
    x = 989,452,745,208.32/1,138,912.60
  6. Step 6: Final answer
    x = 868,769.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.