Home / 1,228,886.50-1,843,640.79-342,422.50

Finding the Fourth Proportional to 1,228,886.50, 1,843,640.79 and 342,422.50

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Solution

The fourth proportional to 1,228,886.50, 1,843,640.79 and 342,422.50 is: 513,720.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,886.50 : 1,843,640.79 = 342,422.50 : x
  2. Step 2: Convert to fraction form
    1,228,886.50/1,843,640.79 = 342,422.50/x
  3. Step 3: Cross multiply
    1,228,886.50x = 1,843,640.79 × 342,422.50
  4. Step 4: Simplify right side
    1,228,886.50x = 631,304,088,413.78
  5. Step 5: Solve for x
    x = 631,304,088,413.78/1,228,886.50
  6. Step 6: Final answer
    x = 513,720.42

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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.