Home / 445,847.79-668,812.37-126,004.28

Finding the Fourth Proportional to 445,847.79, 668,812.37 and 126,004.28

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Solution

The fourth proportional to 445,847.79, 668,812.37 and 126,004.28 is: 189,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,847.79 : 668,812.37 = 126,004.28 : x
  2. Step 2: Convert to fraction form
    445,847.79/668,812.37 = 126,004.28/x
  3. Step 3: Cross multiply
    445,847.79x = 668,812.37 × 126,004.28
  4. Step 4: Simplify right side
    445,847.79x = 84,273,221,136.94
  5. Step 5: Solve for x
    x = 84,273,221,136.94/445,847.79
  6. Step 6: Final answer
    x = 189,017.92

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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.