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Finding the Fourth Proportional to 550,549.61, 759,757.22 and 305,571.89

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Solution

The fourth proportional to 550,549.61, 759,757.22 and 305,571.89 is: 421,688.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,549.61 : 759,757.22 = 305,571.89 : x
  2. Step 2: Convert to fraction form
    550,549.61/759,757.22 = 305,571.89/x
  3. Step 3: Cross multiply
    550,549.61x = 759,757.22 × 305,571.89
  4. Step 4: Simplify right side
    550,549.61x = 232,160,451,173.97
  5. Step 5: Solve for x
    x = 232,160,451,173.97/550,549.61
  6. Step 6: Final answer
    x = 421,688.52

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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.