Home / 728,923.36-1,093,431.12-308,143.84

Finding the Fourth Proportional to 728,923.36, 1,093,431.12 and 308,143.84

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Solution

The fourth proportional to 728,923.36, 1,093,431.12 and 308,143.84 is: 462,235.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,923.36 : 1,093,431.12 = 308,143.84 : x
  2. Step 2: Convert to fraction form
    728,923.36/1,093,431.12 = 308,143.84/x
  3. Step 3: Cross multiply
    728,923.36x = 1,093,431.12 × 308,143.84
  4. Step 4: Simplify right side
    728,923.36x = 336,934,064,092.30
  5. Step 5: Solve for x
    x = 336,934,064,092.30/728,923.36
  6. Step 6: Final answer
    x = 462,235.24

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.