Home / 878,770.44-1,212,627.78-511,315.56

Finding the Fourth Proportional to 878,770.44, 1,212,627.78 and 511,315.56

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Solution

The fourth proportional to 878,770.44, 1,212,627.78 and 511,315.56 is: 705,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,770.44 : 1,212,627.78 = 511,315.56 : x
  2. Step 2: Convert to fraction form
    878,770.44/1,212,627.78 = 511,315.56/x
  3. Step 3: Cross multiply
    878,770.44x = 1,212,627.78 × 511,315.56
  4. Step 4: Simplify right side
    878,770.44x = 620,035,452,402.26
  5. Step 5: Solve for x
    x = 620,035,452,402.26/878,770.44
  6. Step 6: Final answer
    x = 705,571.59

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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.