Home / 813,366.32-1,220,057.76-214,413.44

Finding the Fourth Proportional to 813,366.32, 1,220,057.76 and 214,413.44

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Solution

The fourth proportional to 813,366.32, 1,220,057.76 and 214,413.44 is: 321,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,366.32 : 1,220,057.76 = 214,413.44 : x
  2. Step 2: Convert to fraction form
    813,366.32/1,220,057.76 = 214,413.44/x
  3. Step 3: Cross multiply
    813,366.32x = 1,220,057.76 × 214,413.44
  4. Step 4: Simplify right side
    813,366.32x = 261,596,781,320.29
  5. Step 5: Solve for x
    x = 261,596,781,320.29/813,366.32
  6. Step 6: Final answer
    x = 321,622.34

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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.