Finding the Fourth Proportional to 3,605,693.13, 5,409,261.41 and 1,331,231.36
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Solution
The fourth proportional to 3,605,693.13, 5,409,261.41 and 1,331,231.36 is: 1,997,113.49
Step by Step Solution
- Step 1: Write the proportion equation
3,605,693.13 : 5,409,261.41 = 1,331,231.36 : x - Step 2: Convert to fraction form
3,605,693.13/5,409,261.41 = 1,331,231.36/x - Step 3: Cross multiply
3,605,693.13x = 5,409,261.41 × 1,331,231.36 - Step 4: Simplify right side
3,605,693.13x = 7,200,978,389,727.36 - Step 5: Solve for x
x = 7,200,978,389,727.36/3,605,693.13 - Step 6: Final answer
x = 1,997,113.49
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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.