Home / 808,769.09-1,213,109.90-247,805.21

Finding the Fourth Proportional to 808,769.09, 1,213,109.90 and 247,805.21

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Solution

The fourth proportional to 808,769.09, 1,213,109.90 and 247,805.21 is: 371,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,769.09 : 1,213,109.90 = 247,805.21 : x
  2. Step 2: Convert to fraction form
    808,769.09/1,213,109.90 = 247,805.21/x
  3. Step 3: Cross multiply
    808,769.09x = 1,213,109.90 × 247,805.21
  4. Step 4: Simplify right side
    808,769.09x = 300,614,952,283.55
  5. Step 5: Solve for x
    x = 300,614,952,283.55/808,769.09
  6. Step 6: Final answer
    x = 371,694.41

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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.