Home / 759,392.67-1,138,738.41-279,499.95

Finding the Fourth Proportional to 759,392.67, 1,138,738.41 and 279,499.95

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Solution

The fourth proportional to 759,392.67, 1,138,738.41 and 279,499.95 is: 419,120.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,392.67 : 1,138,738.41 = 279,499.95 : x
  2. Step 2: Convert to fraction form
    759,392.67/1,138,738.41 = 279,499.95/x
  3. Step 3: Cross multiply
    759,392.67x = 1,138,738.41 × 279,499.95
  4. Step 4: Simplify right side
    759,392.67x = 318,277,328,658.08
  5. Step 5: Solve for x
    x = 318,277,328,658.08/759,392.67
  6. Step 6: Final answer
    x = 419,120.89

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1.5x scale

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.