Home / 386,945.40-580,418.10-106,462.20

Finding the Fourth Proportional to 386,945.40, 580,418.10 and 106,462.20

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Solution

The fourth proportional to 386,945.40, 580,418.10 and 106,462.20 is: 159,693.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,945.40 : 580,418.10 = 106,462.20 : x
  2. Step 2: Convert to fraction form
    386,945.40/580,418.10 = 106,462.20/x
  3. Step 3: Cross multiply
    386,945.40x = 580,418.10 × 106,462.20
  4. Step 4: Simplify right side
    386,945.40x = 61,792,587,845.82
  5. Step 5: Solve for x
    x = 61,792,587,845.82/386,945.40
  6. Step 6: Final answer
    x = 159,693.30

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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.