Home / 809,010.82-1,213,506.51-209,918.62

Finding the Fourth Proportional to 809,010.82, 1,213,506.51 and 209,918.62

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Solution

The fourth proportional to 809,010.82, 1,213,506.51 and 209,918.62 is: 314,875.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,010.82 : 1,213,506.51 = 209,918.62 : x
  2. Step 2: Convert to fraction form
    809,010.82/1,213,506.51 = 209,918.62/x
  3. Step 3: Cross multiply
    809,010.82x = 1,213,506.51 × 209,918.62
  4. Step 4: Simplify right side
    809,010.82x = 254,737,611,940.22
  5. Step 5: Solve for x
    x = 254,737,611,940.22/809,010.82
  6. Step 6: Final answer
    x = 314,875.41

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1.5x scale

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.