Home / 685,721.28-946,075.44-444,189

Finding the Fourth Proportional to 685,721.28, 946,075.44 and 444,189

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Solution

The fourth proportional to 685,721.28, 946,075.44 and 444,189 is: 612,838.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,721.28 : 946,075.44 = 444,189 : x
  2. Step 2: Convert to fraction form
    685,721.28/946,075.44 = 444,189/x
  3. Step 3: Cross multiply
    685,721.28x = 946,075.44 × 444,189
  4. Step 4: Simplify right side
    685,721.28x = 420,236,303,618.16
  5. Step 5: Solve for x
    x = 420,236,303,618.16/685,721.28
  6. Step 6: Final answer
    x = 612,838.36

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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.