Home / 1,274,165.44-1,912,430.72-643,522.08

Finding the Fourth Proportional to 1,274,165.44, 1,912,430.72 and 643,522.08

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Solution

The fourth proportional to 1,274,165.44, 1,912,430.72 and 643,522.08 is: 965,880.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,165.44 : 1,912,430.72 = 643,522.08 : x
  2. Step 2: Convert to fraction form
    1,274,165.44/1,912,430.72 = 643,522.08/x
  3. Step 3: Cross multiply
    1,274,165.44x = 1,912,430.72 × 643,522.08
  4. Step 4: Simplify right side
    1,274,165.44x = 1,230,691,394,790.30
  5. Step 5: Solve for x
    x = 1,230,691,394,790.30/1,274,165.44
  6. Step 6: Final answer
    x = 965,880.38

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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.