Home / 858,010.20-1,287,015.30-739,912.20

Finding the Fourth Proportional to 858,010.20, 1,287,015.30 and 739,912.20

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Solution

The fourth proportional to 858,010.20, 1,287,015.30 and 739,912.20 is: 1,109,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,010.20 : 1,287,015.30 = 739,912.20 : x
  2. Step 2: Convert to fraction form
    858,010.20/1,287,015.30 = 739,912.20/x
  3. Step 3: Cross multiply
    858,010.20x = 1,287,015.30 × 739,912.20
  4. Step 4: Simplify right side
    858,010.20x = 952,278,322,056.66
  5. Step 5: Solve for x
    x = 952,278,322,056.66/858,010.20
  6. Step 6: Final answer
    x = 1,109,868.30

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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.