Home / 505,586.47-758,520.11-221,226.07

Finding the Fourth Proportional to 505,586.47, 758,520.11 and 221,226.07

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Solution

The fourth proportional to 505,586.47, 758,520.11 and 221,226.07 is: 331,900.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,586.47 : 758,520.11 = 221,226.07 : x
  2. Step 2: Convert to fraction form
    505,586.47/758,520.11 = 221,226.07/x
  3. Step 3: Cross multiply
    505,586.47x = 758,520.11 × 221,226.07
  4. Step 4: Simplify right side
    505,586.47x = 167,804,422,951.27
  5. Step 5: Solve for x
    x = 167,804,422,951.27/505,586.47
  6. Step 6: Final answer
    x = 331,900.54

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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.