Home / 859,984.83-1,289,977.83-220,290.96

Finding the Fourth Proportional to 859,984.83, 1,289,977.83 and 220,290.96

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Solution

The fourth proportional to 859,984.83, 1,289,977.83 and 220,290.96 is: 330,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,984.83 : 1,289,977.83 = 220,290.96 : x
  2. Step 2: Convert to fraction form
    859,984.83/1,289,977.83 = 220,290.96/x
  3. Step 3: Cross multiply
    859,984.83x = 1,289,977.83 × 220,290.96
  4. Step 4: Simplify right side
    859,984.83x = 284,170,454,549.42
  5. Step 5: Solve for x
    x = 284,170,454,549.42/859,984.83
  6. Step 6: Final answer
    x = 330,436.59

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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.