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Finding the Fourth Proportional to 555,578.69, 766,698.63 and 300,929.96

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Solution

The fourth proportional to 555,578.69, 766,698.63 and 300,929.96 is: 415,283.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,578.69 : 766,698.63 = 300,929.96 : x
  2. Step 2: Convert to fraction form
    555,578.69/766,698.63 = 300,929.96/x
  3. Step 3: Cross multiply
    555,578.69x = 766,698.63 × 300,929.96
  4. Step 4: Simplify right side
    555,578.69x = 230,722,588,057.96
  5. Step 5: Solve for x
    x = 230,722,588,057.96/555,578.69
  6. Step 6: Final answer
    x = 415,283.37

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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.