Home / 420,738.03-580,664.25-259,588.94

Finding the Fourth Proportional to 420,738.03, 580,664.25 and 259,588.94

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Solution

The fourth proportional to 420,738.03, 580,664.25 and 259,588.94 is: 358,260.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,738.03 : 580,664.25 = 259,588.94 : x
  2. Step 2: Convert to fraction form
    420,738.03/580,664.25 = 259,588.94/x
  3. Step 3: Cross multiply
    420,738.03x = 580,664.25 × 259,588.94
  4. Step 4: Simplify right side
    420,738.03x = 150,734,014,250.07
  5. Step 5: Solve for x
    x = 150,734,014,250.07/420,738.03
  6. Step 6: Final answer
    x = 358,260.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.