Home / 855,201.72-1,283,009.94-256,161.72

Finding the Fourth Proportional to 855,201.72, 1,283,009.94 and 256,161.72

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Solution

The fourth proportional to 855,201.72, 1,283,009.94 and 256,161.72 is: 384,304.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,201.72 : 1,283,009.94 = 256,161.72 : x
  2. Step 2: Convert to fraction form
    855,201.72/1,283,009.94 = 256,161.72/x
  3. Step 3: Cross multiply
    855,201.72x = 1,283,009.94 × 256,161.72
  4. Step 4: Simplify right side
    855,201.72x = 328,658,033,007.50
  5. Step 5: Solve for x
    x = 328,658,033,007.50/855,201.72
  6. Step 6: Final answer
    x = 384,304.69

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Similar ratio
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1.5x scale

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.