Home / 1,274,891.42-1,912,540.14-421,994.23

Finding the Fourth Proportional to 1,274,891.42, 1,912,540.14 and 421,994.23

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Solution

The fourth proportional to 1,274,891.42, 1,912,540.14 and 421,994.23 is: 633,058.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,891.42 : 1,912,540.14 = 421,994.23 : x
  2. Step 2: Convert to fraction form
    1,274,891.42/1,912,540.14 = 421,994.23/x
  3. Step 3: Cross multiply
    1,274,891.42x = 1,912,540.14 × 421,994.23
  4. Step 4: Simplify right side
    1,274,891.42x = 807,080,898,942.04
  5. Step 5: Solve for x
    x = 807,080,898,942.04/1,274,891.42
  6. Step 6: Final answer
    x = 633,058.54

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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.