Home / 750,976.31-1,036,391.36-428,787.47

Finding the Fourth Proportional to 750,976.31, 1,036,391.36 and 428,787.47

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Solution

The fourth proportional to 750,976.31, 1,036,391.36 and 428,787.47 is: 591,751.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,976.31 : 1,036,391.36 = 428,787.47 : x
  2. Step 2: Convert to fraction form
    750,976.31/1,036,391.36 = 428,787.47/x
  3. Step 3: Cross multiply
    750,976.31x = 1,036,391.36 × 428,787.47
  4. Step 4: Simplify right side
    750,976.31x = 444,391,629,631.30
  5. Step 5: Solve for x
    x = 444,391,629,631.30/750,976.31
  6. Step 6: Final answer
    x = 591,751.86

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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.