Home / 911,098.56-1,366,778.52-280,065.36

Finding the Fourth Proportional to 911,098.56, 1,366,778.52 and 280,065.36

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Solution

The fourth proportional to 911,098.56, 1,366,778.52 and 280,065.36 is: 420,138.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,098.56 : 1,366,778.52 = 280,065.36 : x
  2. Step 2: Convert to fraction form
    911,098.56/1,366,778.52 = 280,065.36/x
  3. Step 3: Cross multiply
    911,098.56x = 1,366,778.52 × 280,065.36
  4. Step 4: Simplify right side
    911,098.56x = 382,787,318,244.07
  5. Step 5: Solve for x
    x = 382,787,318,244.07/911,098.56
  6. Step 6: Final answer
    x = 420,138.21

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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.