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Finding the Fourth Proportional to 555,208.49, 766,190.21 and 300,559.68

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Solution

The fourth proportional to 555,208.49, 766,190.21 and 300,559.68 is: 414,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,208.49 : 766,190.21 = 300,559.68 : x
  2. Step 2: Convert to fraction form
    555,208.49/766,190.21 = 300,559.68/x
  3. Step 3: Cross multiply
    555,208.49x = 766,190.21 × 300,559.68
  4. Step 4: Simplify right side
    555,208.49x = 230,285,882,833.93
  5. Step 5: Solve for x
    x = 230,285,882,833.93/555,208.49
  6. Step 6: Final answer
    x = 414,773.70

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.