Home / 505,043.36-756,588.11-423,016.49

Finding the Fourth Proportional to 505,043.36, 756,588.11 and 423,016.49

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Solution

The fourth proportional to 505,043.36, 756,588.11 and 423,016.49 is: 633,706.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,043.36 : 756,588.11 = 423,016.49 : x
  2. Step 2: Convert to fraction form
    505,043.36/756,588.11 = 423,016.49/x
  3. Step 3: Cross multiply
    505,043.36x = 756,588.11 × 423,016.49
  4. Step 4: Simplify right side
    505,043.36x = 320,049,243,942.54
  5. Step 5: Solve for x
    x = 320,049,243,942.54/505,043.36
  6. Step 6: Final answer
    x = 633,706.47

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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.