Home / 878,918.55-1,213,097.31-534,865.33

Finding the Fourth Proportional to 878,918.55, 1,213,097.31 and 534,865.33

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Solution

The fourth proportional to 878,918.55, 1,213,097.31 and 534,865.33 is: 738,229.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,918.55 : 1,213,097.31 = 534,865.33 : x
  2. Step 2: Convert to fraction form
    878,918.55/1,213,097.31 = 534,865.33/x
  3. Step 3: Cross multiply
    878,918.55x = 1,213,097.31 × 534,865.33
  4. Step 4: Simplify right side
    878,918.55x = 648,843,694,918.66
  5. Step 5: Solve for x
    x = 648,843,694,918.66/878,918.55
  6. Step 6: Final answer
    x = 738,229.61

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Why These Related Problems?

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