Home / 1,274,602.54-1,912,191.84-421,672.18

Finding the Fourth Proportional to 1,274,602.54, 1,912,191.84 and 421,672.18

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Solution

The fourth proportional to 1,274,602.54, 1,912,191.84 and 421,672.18 is: 632,603.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,602.54 : 1,912,191.84 = 421,672.18 : x
  2. Step 2: Convert to fraction form
    1,274,602.54/1,912,191.84 = 421,672.18/x
  3. Step 3: Cross multiply
    1,274,602.54x = 1,912,191.84 × 421,672.18
  4. Step 4: Simplify right side
    1,274,602.54x = 806,318,101,751.01
  5. Step 5: Solve for x
    x = 806,318,101,751.01/1,274,602.54
  6. Step 6: Final answer
    x = 632,603.56

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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.