Home / 1,211,735.40-1,672,187.32-660,450.48

Finding the Fourth Proportional to 1,211,735.40, 1,672,187.32 and 660,450.48

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Solution

The fourth proportional to 1,211,735.40, 1,672,187.32 and 660,450.48 is: 911,417.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,735.40 : 1,672,187.32 = 660,450.48 : x
  2. Step 2: Convert to fraction form
    1,211,735.40/1,672,187.32 = 660,450.48/x
  3. Step 3: Cross multiply
    1,211,735.40x = 1,672,187.32 × 660,450.48
  4. Step 4: Simplify right side
    1,211,735.40x = 1,104,396,918,143.91
  5. Step 5: Solve for x
    x = 1,104,396,918,143.91/1,211,735.40
  6. Step 6: Final answer
    x = 911,417.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.