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Finding the Fourth Proportional to 565,220.45, 779,987.94 and 323,494.81

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Solution

The fourth proportional to 565,220.45, 779,987.94 and 323,494.81 is: 446,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,220.45 : 779,987.94 = 323,494.81 : x
  2. Step 2: Convert to fraction form
    565,220.45/779,987.94 = 323,494.81/x
  3. Step 3: Cross multiply
    565,220.45x = 779,987.94 × 323,494.81
  4. Step 4: Simplify right side
    565,220.45x = 252,322,046,552.65
  5. Step 5: Solve for x
    x = 252,322,046,552.65/565,220.45
  6. Step 6: Final answer
    x = 446,413.51

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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.