Home / 839,879.78-1,259,808.74-208,799.06

Finding the Fourth Proportional to 839,879.78, 1,259,808.74 and 208,799.06

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Solution

The fourth proportional to 839,879.78, 1,259,808.74 and 208,799.06 is: 313,195.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,879.78 : 1,259,808.74 = 208,799.06 : x
  2. Step 2: Convert to fraction form
    839,879.78/1,259,808.74 = 208,799.06/x
  3. Step 3: Cross multiply
    839,879.78x = 1,259,808.74 × 208,799.06
  4. Step 4: Simplify right side
    839,879.78x = 263,046,879,647.79
  5. Step 5: Solve for x
    x = 263,046,879,647.79/839,879.78
  6. Step 6: Final answer
    x = 313,195.87

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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.