Home / 2,928,470.90-4,391,989.56-1,222,628.31

Finding the Fourth Proportional to 2,928,470.90, 4,391,989.56 and 1,222,628.31

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Solution

The fourth proportional to 2,928,470.90, 4,391,989.56 and 1,222,628.31 is: 1,833,643.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,928,470.90 : 4,391,989.56 = 1,222,628.31 : x
  2. Step 2: Convert to fraction form
    2,928,470.90/4,391,989.56 = 1,222,628.31/x
  3. Step 3: Cross multiply
    2,928,470.90x = 4,391,989.56 × 1,222,628.31
  4. Step 4: Simplify right side
    2,928,470.90x = 5,369,770,773,280.44
  5. Step 5: Solve for x
    x = 5,369,770,773,280.44/2,928,470.90
  6. Step 6: Final answer
    x = 1,833,643.21

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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.