Home / 412,619.10-569,413.86-231,331.08

Finding the Fourth Proportional to 412,619.10, 569,413.86 and 231,331.08

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Solution

The fourth proportional to 412,619.10, 569,413.86 and 231,331.08 is: 319,236.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,619.10 : 569,413.86 = 231,331.08 : x
  2. Step 2: Convert to fraction form
    412,619.10/569,413.86 = 231,331.08/x
  3. Step 3: Cross multiply
    412,619.10x = 569,413.86 × 231,331.08
  4. Step 4: Simplify right side
    412,619.10x = 131,723,123,200.77
  5. Step 5: Solve for x
    x = 131,723,123,200.77/412,619.10
  6. Step 6: Final answer
    x = 319,236.61

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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.