Home / 505,179.07-757,112.49-205,310.71

Finding the Fourth Proportional to 505,179.07, 757,112.49 and 205,310.71

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Solution

The fourth proportional to 505,179.07, 757,112.49 and 205,310.71 is: 307,699.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,179.07 : 757,112.49 = 205,310.71 : x
  2. Step 2: Convert to fraction form
    505,179.07/757,112.49 = 205,310.71/x
  3. Step 3: Cross multiply
    505,179.07x = 757,112.49 × 205,310.71
  4. Step 4: Simplify right side
    505,179.07x = 155,443,302,871.77
  5. Step 5: Solve for x
    x = 155,443,302,871.77/505,179.07
  6. Step 6: Final answer
    x = 307,699.41

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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.