Home / 859,990.82-1,289,986.46-252,779.23

Finding the Fourth Proportional to 859,990.82, 1,289,986.46 and 252,779.23

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Solution

The fourth proportional to 859,990.82, 1,289,986.46 and 252,779.23 is: 379,168.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,990.82 : 1,289,986.46 = 252,779.23 : x
  2. Step 2: Convert to fraction form
    859,990.82/1,289,986.46 = 252,779.23/x
  3. Step 3: Cross multiply
    859,990.82x = 1,289,986.46 × 252,779.23
  4. Step 4: Simplify right side
    859,990.82x = 326,081,785,365.74
  5. Step 5: Solve for x
    x = 326,081,785,365.74/859,990.82
  6. Step 6: Final answer
    x = 379,168.91

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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.