Home / 936,910.80-1,405,020.60-305,845.20

Finding the Fourth Proportional to 936,910.80, 1,405,020.60 and 305,845.20

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Solution

The fourth proportional to 936,910.80, 1,405,020.60 and 305,845.20 is: 458,654.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    936,910.80 : 1,405,020.60 = 305,845.20 : x
  2. Step 2: Convert to fraction form
    936,910.80/1,405,020.60 = 305,845.20/x
  3. Step 3: Cross multiply
    936,910.80x = 1,405,020.60 × 305,845.20
  4. Step 4: Simplify right side
    936,910.80x = 429,718,806,411.12
  5. Step 5: Solve for x
    x = 429,718,806,411.12/936,910.80
  6. Step 6: Final answer
    x = 458,654.98

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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.