Home / 685,516.91-1,028,264.36-186,880.91

Finding the Fourth Proportional to 685,516.91, 1,028,264.36 and 186,880.91

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Solution

The fourth proportional to 685,516.91, 1,028,264.36 and 186,880.91 is: 280,318.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,516.91 : 1,028,264.36 = 186,880.91 : x
  2. Step 2: Convert to fraction form
    685,516.91/1,028,264.36 = 186,880.91/x
  3. Step 3: Cross multiply
    685,516.91x = 1,028,264.36 × 186,880.91
  4. Step 4: Simplify right side
    685,516.91x = 192,162,973,241.64
  5. Step 5: Solve for x
    x = 192,162,973,241.64/685,516.91
  6. Step 6: Final answer
    x = 280,318.36

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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.