Home / 1,211,413.72-1,671,762.12-667,568.96

Finding the Fourth Proportional to 1,211,413.72, 1,671,762.12 and 667,568.96

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Solution

The fourth proportional to 1,211,413.72, 1,671,762.12 and 667,568.96 is: 921,251.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,413.72 : 1,671,762.12 = 667,568.96 : x
  2. Step 2: Convert to fraction form
    1,211,413.72/1,671,762.12 = 667,568.96/x
  3. Step 3: Cross multiply
    1,211,413.72x = 1,671,762.12 × 667,568.96
  4. Step 4: Simplify right side
    1,211,413.72x = 1,116,016,499,815.80
  5. Step 5: Solve for x
    x = 1,116,016,499,815.80/1,211,413.72
  6. Step 6: Final answer
    x = 921,251.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.