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Finding the Fourth Proportional to 551,039.66, 760,365.86 and 305,991.10

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Solution

The fourth proportional to 551,039.66, 760,365.86 and 305,991.10 is: 422,229.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,039.66 : 760,365.86 = 305,991.10 : x
  2. Step 2: Convert to fraction form
    551,039.66/760,365.86 = 305,991.10/x
  3. Step 3: Cross multiply
    551,039.66x = 760,365.86 × 305,991.10
  4. Step 4: Simplify right side
    551,039.66x = 232,665,185,903.85
  5. Step 5: Solve for x
    x = 232,665,185,903.85/551,039.66
  6. Step 6: Final answer
    x = 422,229.47

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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.