Home / 1,989,911.28-2,984,866.80-494,003.28

Finding the Fourth Proportional to 1,989,911.28, 2,984,866.80 and 494,003.28

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Solution

The fourth proportional to 1,989,911.28, 2,984,866.80 and 494,003.28 is: 741,004.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,911.28 : 2,984,866.80 = 494,003.28 : x
  2. Step 2: Convert to fraction form
    1,989,911.28/2,984,866.80 = 494,003.28/x
  3. Step 3: Cross multiply
    1,989,911.28x = 2,984,866.80 × 494,003.28
  4. Step 4: Simplify right side
    1,989,911.28x = 1,474,533,989,563.10
  5. Step 5: Solve for x
    x = 1,474,533,989,563.10/1,989,911.28
  6. Step 6: Final answer
    x = 741,004.89

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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.