Home / 685,529.11-946,029.57-379,605.48

Finding the Fourth Proportional to 685,529.11, 946,029.57 and 379,605.48

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Solution

The fourth proportional to 685,529.11, 946,029.57 and 379,605.48 is: 523,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,529.11 : 946,029.57 = 379,605.48 : x
  2. Step 2: Convert to fraction form
    685,529.11/946,029.57 = 379,605.48/x
  3. Step 3: Cross multiply
    685,529.11x = 946,029.57 × 379,605.48
  4. Step 4: Simplify right side
    685,529.11x = 359,118,009,014.04
  5. Step 5: Solve for x
    x = 359,118,009,014.04/685,529.11
  6. Step 6: Final answer
    x = 523,855.23

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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.