Home / 1,230,454.82-1,845,969.26-420,845.51

Finding the Fourth Proportional to 1,230,454.82, 1,845,969.26 and 420,845.51

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Solution

The fourth proportional to 1,230,454.82, 1,845,969.26 and 420,845.51 is: 631,366.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,454.82 : 1,845,969.26 = 420,845.51 : x
  2. Step 2: Convert to fraction form
    1,230,454.82/1,845,969.26 = 420,845.51/x
  3. Step 3: Cross multiply
    1,230,454.82x = 1,845,969.26 × 420,845.51
  4. Step 4: Simplify right side
    1,230,454.82x = 776,867,863,334.95
  5. Step 5: Solve for x
    x = 776,867,863,334.95/1,230,454.82
  6. Step 6: Final answer
    x = 631,366.43

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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.