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Finding the Fourth Proportional to 685,804, 946,190.84 and 444,271.76

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Solution

The fourth proportional to 685,804, 946,190.84 and 444,271.76 is: 612,953.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,804 : 946,190.84 = 444,271.76 : x
  2. Step 2: Convert to fraction form
    685,804/946,190.84 = 444,271.76/x
  3. Step 3: Cross multiply
    685,804x = 946,190.84 × 444,271.76
  4. Step 4: Simplify right side
    685,804x = 420,365,869,782.68
  5. Step 5: Solve for x
    x = 420,365,869,782.68/685,804
  6. Step 6: Final answer
    x = 612,953.37

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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.