Home / 980,462.78-1,470,778.91-270,490.82

Finding the Fourth Proportional to 980,462.78, 1,470,778.91 and 270,490.82

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Solution

The fourth proportional to 980,462.78, 1,470,778.91 and 270,490.82 is: 405,759.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,462.78 : 1,470,778.91 = 270,490.82 : x
  2. Step 2: Convert to fraction form
    980,462.78/1,470,778.91 = 270,490.82/x
  3. Step 3: Cross multiply
    980,462.78x = 1,470,778.91 × 270,490.82
  4. Step 4: Simplify right side
    980,462.78x = 397,832,189,484.65
  5. Step 5: Solve for x
    x = 397,832,189,484.65/980,462.78
  6. Step 6: Final answer
    x = 405,759.61

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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.