Home / 738,389.72-1,107,771.39-205,910.81

Finding the Fourth Proportional to 738,389.72, 1,107,771.39 and 205,910.81

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Solution

The fourth proportional to 738,389.72, 1,107,771.39 and 205,910.81 is: 308,918.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,389.72 : 1,107,771.39 = 205,910.81 : x
  2. Step 2: Convert to fraction form
    738,389.72/1,107,771.39 = 205,910.81/x
  3. Step 3: Cross multiply
    738,389.72x = 1,107,771.39 × 205,910.81
  4. Step 4: Simplify right side
    738,389.72x = 228,102,104,209.73
  5. Step 5: Solve for x
    x = 228,102,104,209.73/738,389.72
  6. Step 6: Final answer
    x = 308,918.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.