Home / 993,274.80-1,489,912.20-520,105.20

Finding the Fourth Proportional to 993,274.80, 1,489,912.20 and 520,105.20

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Solution

The fourth proportional to 993,274.80, 1,489,912.20 and 520,105.20 is: 780,157.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,274.80 : 1,489,912.20 = 520,105.20 : x
  2. Step 2: Convert to fraction form
    993,274.80/1,489,912.20 = 520,105.20/x
  3. Step 3: Cross multiply
    993,274.80x = 1,489,912.20 × 520,105.20
  4. Step 4: Simplify right side
    993,274.80x = 774,911,082,763.44
  5. Step 5: Solve for x
    x = 774,911,082,763.44/993,274.80
  6. Step 6: Final answer
    x = 780,157.80

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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.