Home / 911,911.64-1,368,016.10-280,825.44

Finding the Fourth Proportional to 911,911.64, 1,368,016.10 and 280,825.44

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Solution

The fourth proportional to 911,911.64, 1,368,016.10 and 280,825.44 is: 421,283.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,911.64 : 1,368,016.10 = 280,825.44 : x
  2. Step 2: Convert to fraction form
    911,911.64/1,368,016.10 = 280,825.44/x
  3. Step 3: Cross multiply
    911,911.64x = 1,368,016.10 × 280,825.44
  4. Step 4: Simplify right side
    911,911.64x = 384,173,723,209.58
  5. Step 5: Solve for x
    x = 384,173,723,209.58/911,911.64
  6. Step 6: Final answer
    x = 421,283.93

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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.