Home / 505,583.47-758,515.61-221,223.07

Finding the Fourth Proportional to 505,583.47, 758,515.61 and 221,223.07

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Solution

The fourth proportional to 505,583.47, 758,515.61 and 221,223.07 is: 331,896.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,583.47 : 758,515.61 = 221,223.07 : x
  2. Step 2: Convert to fraction form
    505,583.47/758,515.61 = 221,223.07/x
  3. Step 3: Cross multiply
    505,583.47x = 758,515.61 × 221,223.07
  4. Step 4: Simplify right side
    505,583.47x = 167,801,151,887.12
  5. Step 5: Solve for x
    x = 167,801,151,887.12/505,583.47
  6. Step 6: Final answer
    x = 331,896.04

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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.