Home / 891,452.82-1,229,905.71-509,208.96

Finding the Fourth Proportional to 891,452.82, 1,229,905.71 and 509,208.96

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Solution

The fourth proportional to 891,452.82, 1,229,905.71 and 509,208.96 is: 702,537.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,452.82 : 1,229,905.71 = 509,208.96 : x
  2. Step 2: Convert to fraction form
    891,452.82/1,229,905.71 = 509,208.96/x
  3. Step 3: Cross multiply
    891,452.82x = 1,229,905.71 × 509,208.96
  4. Step 4: Simplify right side
    891,452.82x = 626,279,007,487.16
  5. Step 5: Solve for x
    x = 626,279,007,487.16/891,452.82
  6. Step 6: Final answer
    x = 702,537.47

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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.