Home / 1,330,296.30-1,993,255.65-768,350.70

Finding the Fourth Proportional to 1,330,296.30, 1,993,255.65 and 768,350.70

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Solution

The fourth proportional to 1,330,296.30, 1,993,255.65 and 768,350.70 is: 1,151,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,296.30 : 1,993,255.65 = 768,350.70 : x
  2. Step 2: Convert to fraction form
    1,330,296.30/1,993,255.65 = 768,350.70/x
  3. Step 3: Cross multiply
    1,330,296.30x = 1,993,255.65 × 768,350.70
  4. Step 4: Simplify right side
    1,330,296.30x = 1,531,519,373,956.45
  5. Step 5: Solve for x
    x = 1,531,519,373,956.45/1,330,296.30
  6. Step 6: Final answer
    x = 1,151,261.85

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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.