Home / 505,383.05-697,430.10-275,942.33

Finding the Fourth Proportional to 505,383.05, 697,430.10 and 275,942.33

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Solution

The fourth proportional to 505,383.05, 697,430.10 and 275,942.33 is: 380,801.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,383.05 : 697,430.10 = 275,942.33 : x
  2. Step 2: Convert to fraction form
    505,383.05/697,430.10 = 275,942.33/x
  3. Step 3: Cross multiply
    505,383.05x = 697,430.10 × 275,942.33
  4. Step 4: Simplify right side
    505,383.05x = 192,450,486,806.13
  5. Step 5: Solve for x
    x = 192,450,486,806.13/505,383.05
  6. Step 6: Final answer
    x = 380,801.23

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1.5x scale

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.