Home / 767,455.32-1,150,690.77-318,486.09

Finding the Fourth Proportional to 767,455.32, 1,150,690.77 and 318,486.09

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Solution

The fourth proportional to 767,455.32, 1,150,690.77 and 318,486.09 is: 477,524.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,455.32 : 1,150,690.77 = 318,486.09 : x
  2. Step 2: Convert to fraction form
    767,455.32/1,150,690.77 = 318,486.09/x
  3. Step 3: Cross multiply
    767,455.32x = 1,150,690.77 × 318,486.09
  4. Step 4: Simplify right side
    767,455.32x = 366,479,004,136.39
  5. Step 5: Solve for x
    x = 366,479,004,136.39/767,455.32
  6. Step 6: Final answer
    x = 477,524.87

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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.