Home / 1,392,662.25-2,088,993.40-919,236.89

Finding the Fourth Proportional to 1,392,662.25, 2,088,993.40 and 919,236.89

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Solution

The fourth proportional to 1,392,662.25, 2,088,993.40 and 919,236.89 is: 1,378,855.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,662.25 : 2,088,993.40 = 919,236.89 : x
  2. Step 2: Convert to fraction form
    1,392,662.25/2,088,993.40 = 919,236.89/x
  3. Step 3: Cross multiply
    1,392,662.25x = 2,088,993.40 × 919,236.89
  4. Step 4: Simplify right side
    1,392,662.25x = 1,920,279,783,503.47
  5. Step 5: Solve for x
    x = 1,920,279,783,503.47/1,392,662.25
  6. Step 6: Final answer
    x = 1,378,855.34

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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.