Home / 989,269.80-1,483,818.30-324,421.80

Finding the Fourth Proportional to 989,269.80, 1,483,818.30 and 324,421.80

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Solution

The fourth proportional to 989,269.80, 1,483,818.30 and 324,421.80 is: 486,604.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,269.80 : 1,483,818.30 = 324,421.80 : x
  2. Step 2: Convert to fraction form
    989,269.80/1,483,818.30 = 324,421.80/x
  3. Step 3: Cross multiply
    989,269.80x = 1,483,818.30 × 324,421.80
  4. Step 4: Simplify right side
    989,269.80x = 481,383,003,758.94
  5. Step 5: Solve for x
    x = 481,383,003,758.94/989,269.80
  6. Step 6: Final answer
    x = 486,604.37

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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.