Home / 1,215,190.58-1,821,200.43-879,362.42

Finding the Fourth Proportional to 1,215,190.58, 1,821,200.43 and 879,362.42

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Solution

The fourth proportional to 1,215,190.58, 1,821,200.43 and 879,362.42 is: 1,317,896.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,190.58 : 1,821,200.43 = 879,362.42 : x
  2. Step 2: Convert to fraction form
    1,215,190.58/1,821,200.43 = 879,362.42/x
  3. Step 3: Cross multiply
    1,215,190.58x = 1,821,200.43 × 879,362.42
  4. Step 4: Simplify right side
    1,215,190.58x = 1,601,495,217,429.84
  5. Step 5: Solve for x
    x = 1,601,495,217,429.84/1,215,190.58
  6. Step 6: Final answer
    x = 1,317,896.34

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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.