Home / 1,215,655.12-1,823,413.56-329,122

Finding the Fourth Proportional to 1,215,655.12, 1,823,413.56 and 329,122

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Solution

The fourth proportional to 1,215,655.12, 1,823,413.56 and 329,122 is: 493,664.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,655.12 : 1,823,413.56 = 329,122 : x
  2. Step 2: Convert to fraction form
    1,215,655.12/1,823,413.56 = 329,122/x
  3. Step 3: Cross multiply
    1,215,655.12x = 1,823,413.56 × 329,122
  4. Step 4: Simplify right side
    1,215,655.12x = 600,125,517,694.32
  5. Step 5: Solve for x
    x = 600,125,517,694.32/1,215,655.12
  6. Step 6: Final answer
    x = 493,664.29

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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.