Home / 505,904.49-698,187.89-288,122.33

Finding the Fourth Proportional to 505,904.49, 698,187.89 and 288,122.33

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Solution

The fourth proportional to 505,904.49, 698,187.89 and 288,122.33 is: 397,631.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,904.49 : 698,187.89 = 288,122.33 : x
  2. Step 2: Convert to fraction form
    505,904.49/698,187.89 = 288,122.33/x
  3. Step 3: Cross multiply
    505,904.49x = 698,187.89 × 288,122.33
  4. Step 4: Simplify right side
    505,904.49x = 201,163,524,110.36
  5. Step 5: Solve for x
    x = 201,163,524,110.36/505,904.49
  6. Step 6: Final answer
    x = 397,631.43

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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.