Home / 850,361.82-1,275,761.79-317,886.72

Finding the Fourth Proportional to 850,361.82, 1,275,761.79 and 317,886.72

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Solution

The fourth proportional to 850,361.82, 1,275,761.79 and 317,886.72 is: 476,911.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,361.82 : 1,275,761.79 = 317,886.72 : x
  2. Step 2: Convert to fraction form
    850,361.82/1,275,761.79 = 317,886.72/x
  3. Step 3: Cross multiply
    850,361.82x = 1,275,761.79 × 317,886.72
  4. Step 4: Simplify right side
    850,361.82x = 405,547,730,924.43
  5. Step 5: Solve for x
    x = 405,547,730,924.43/850,361.82
  6. Step 6: Final answer
    x = 476,911.97

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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.