Home / 1,072,942.20-1,609,413.30-408,007.80

Finding the Fourth Proportional to 1,072,942.20, 1,609,413.30 and 408,007.80

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Solution

The fourth proportional to 1,072,942.20, 1,609,413.30 and 408,007.80 is: 612,011.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,942.20 : 1,609,413.30 = 408,007.80 : x
  2. Step 2: Convert to fraction form
    1,072,942.20/1,609,413.30 = 408,007.80/x
  3. Step 3: Cross multiply
    1,072,942.20x = 1,609,413.30 × 408,007.80
  4. Step 4: Simplify right side
    1,072,942.20x = 656,653,179,823.74
  5. Step 5: Solve for x
    x = 656,653,179,823.74/1,072,942.20
  6. Step 6: Final answer
    x = 612,011.70

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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.