Home / 1,274,598.54-1,912,185.84-421,668.18

Finding the Fourth Proportional to 1,274,598.54, 1,912,185.84 and 421,668.18

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Solution

The fourth proportional to 1,274,598.54, 1,912,185.84 and 421,668.18 is: 632,597.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,598.54 : 1,912,185.84 = 421,668.18 : x
  2. Step 2: Convert to fraction form
    1,274,598.54/1,912,185.84 = 421,668.18/x
  3. Step 3: Cross multiply
    1,274,598.54x = 1,912,185.84 × 421,668.18
  4. Step 4: Simplify right side
    1,274,598.54x = 806,307,922,974.57
  5. Step 5: Solve for x
    x = 806,307,922,974.57/1,274,598.54
  6. Step 6: Final answer
    x = 632,597.56

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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.