Home / 855,852.93-1,284,019.38-343,877.58

Finding the Fourth Proportional to 855,852.93, 1,284,019.38 and 343,877.58

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Solution

The fourth proportional to 855,852.93, 1,284,019.38 and 343,877.58 is: 515,912.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,852.93 : 1,284,019.38 = 343,877.58 : x
  2. Step 2: Convert to fraction form
    855,852.93/1,284,019.38 = 343,877.58/x
  3. Step 3: Cross multiply
    855,852.93x = 1,284,019.38 × 343,877.58
  4. Step 4: Simplify right side
    855,852.93x = 441,545,477,067.50
  5. Step 5: Solve for x
    x = 441,545,477,067.50/855,852.93
  6. Step 6: Final answer
    x = 515,912.79

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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.