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Finding the Fourth Proportional to 496,728.01, 685,465.62 and 281,855.26

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Solution

The fourth proportional to 496,728.01, 685,465.62 and 281,855.26 is: 388,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,728.01 : 685,465.62 = 281,855.26 : x
  2. Step 2: Convert to fraction form
    496,728.01/685,465.62 = 281,855.26/x
  3. Step 3: Cross multiply
    496,728.01x = 685,465.62 × 281,855.26
  4. Step 4: Simplify right side
    496,728.01x = 193,202,090,546.16
  5. Step 5: Solve for x
    x = 193,202,090,546.16/496,728.01
  6. Step 6: Final answer
    x = 388,949.46

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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.