Home / 685,528.11-946,028.19-379,604.48

Finding the Fourth Proportional to 685,528.11, 946,028.19 and 379,604.48

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Solution

The fourth proportional to 685,528.11, 946,028.19 and 379,604.48 is: 523,853.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,528.11 : 946,028.19 = 379,604.48 : x
  2. Step 2: Convert to fraction form
    685,528.11/946,028.19 = 379,604.48/x
  3. Step 3: Cross multiply
    685,528.11x = 946,028.19 × 379,604.48
  4. Step 4: Simplify right side
    685,528.11x = 359,116,534,400.15
  5. Step 5: Solve for x
    x = 359,116,534,400.15/685,528.11
  6. Step 6: Final answer
    x = 523,853.84

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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.