Home / 936,940.72-1,405,294.44-305,801.68

Finding the Fourth Proportional to 936,940.72, 1,405,294.44 and 305,801.68

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Solution

The fourth proportional to 936,940.72, 1,405,294.44 and 305,801.68 is: 458,664.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,940.72 : 1,405,294.44 = 305,801.68 : x
  2. Step 2: Convert to fraction form
    936,940.72/1,405,294.44 = 305,801.68/x
  3. Step 3: Cross multiply
    936,940.72x = 1,405,294.44 × 305,801.68
  4. Step 4: Simplify right side
    936,940.72x = 429,741,400,646.66
  5. Step 5: Solve for x
    x = 429,741,400,646.66/936,940.72
  6. Step 6: Final answer
    x = 458,664.45

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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.