Home / 459,738.41-689,600.68-206,840.31

Finding the Fourth Proportional to 459,738.41, 689,600.68 and 206,840.31

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Solution

The fourth proportional to 459,738.41, 689,600.68 and 206,840.31 is: 310,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,738.41 : 689,600.68 = 206,840.31 : x
  2. Step 2: Convert to fraction form
    459,738.41/689,600.68 = 206,840.31/x
  3. Step 3: Cross multiply
    459,738.41x = 689,600.68 × 206,840.31
  4. Step 4: Simplify right side
    459,738.41x = 142,637,215,324.31
  5. Step 5: Solve for x
    x = 142,637,215,324.31/459,738.41
  6. Step 6: Final answer
    x = 310,257.34

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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.