Home / 999,819.80-1,500,079.62-289,890.44

Finding the Fourth Proportional to 999,819.80, 1,500,079.62 and 289,890.44

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Solution

The fourth proportional to 999,819.80, 1,500,079.62 and 289,890.44 is: 434,937.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,819.80 : 1,500,079.62 = 289,890.44 : x
  2. Step 2: Convert to fraction form
    999,819.80/1,500,079.62 = 289,890.44/x
  3. Step 3: Cross multiply
    999,819.80x = 1,500,079.62 × 289,890.44
  4. Step 4: Simplify right side
    999,819.80x = 434,858,741,076.83
  5. Step 5: Solve for x
    x = 434,858,741,076.83/999,819.80
  6. Step 6: Final answer
    x = 434,937.12

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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.