Home / 859,101.90-1,288,324.80-259,863.90

Finding the Fourth Proportional to 859,101.90, 1,288,324.80 and 259,863.90

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Solution

The fourth proportional to 859,101.90, 1,288,324.80 and 259,863.90 is: 389,696.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,101.90 : 1,288,324.80 = 259,863.90 : x
  2. Step 2: Convert to fraction form
    859,101.90/1,288,324.80 = 259,863.90/x
  3. Step 3: Cross multiply
    859,101.90x = 1,288,324.80 × 259,863.90
  4. Step 4: Simplify right side
    859,101.90x = 334,789,106,994.72
  5. Step 5: Solve for x
    x = 334,789,106,994.72/859,101.90
  6. Step 6: Final answer
    x = 389,696.62

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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.