Home / 768,201.37-1,151,651.32-318,641.65

Finding the Fourth Proportional to 768,201.37, 1,151,651.32 and 318,641.65

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Solution

The fourth proportional to 768,201.37, 1,151,651.32 and 318,641.65 is: 477,692.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,201.37 : 1,151,651.32 = 318,641.65 : x
  2. Step 2: Convert to fraction form
    768,201.37/1,151,651.32 = 318,641.65/x
  3. Step 3: Cross multiply
    768,201.37x = 1,151,651.32 × 318,641.65
  4. Step 4: Simplify right side
    768,201.37x = 366,964,073,153.75
  5. Step 5: Solve for x
    x = 366,964,073,153.75/768,201.37
  6. Step 6: Final answer
    x = 477,692.55

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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.