Home / 2,109,919.55-3,164,879.36-512,471.87

Finding the Fourth Proportional to 2,109,919.55, 3,164,879.36 and 512,471.87

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Solution

The fourth proportional to 2,109,919.55, 3,164,879.36 and 512,471.87 is: 768,707.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,109,919.55 : 3,164,879.36 = 512,471.87 : x
  2. Step 2: Convert to fraction form
    2,109,919.55/3,164,879.36 = 512,471.87/x
  3. Step 3: Cross multiply
    2,109,919.55x = 3,164,879.36 × 512,471.87
  4. Step 4: Simplify right side
    2,109,919.55x = 1,621,911,643,943.60
  5. Step 5: Solve for x
    x = 1,621,911,643,943.60/2,109,919.55
  6. Step 6: Final answer
    x = 768,707.81

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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.