Finding the Fourth Proportional to 403,806.20, 605,795.70 and 123,351.80
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Solution
The fourth proportional to 403,806.20, 605,795.70 and 123,351.80 is: 185,054.09
Step by Step Solution
- Step 1: Write the proportion equation
403,806.20 : 605,795.70 = 123,351.80 : x - Step 2: Convert to fraction form
403,806.20/605,795.70 = 123,351.80/x - Step 3: Cross multiply
403,806.20x = 605,795.70 × 123,351.80 - Step 4: Simplify right side
403,806.20x = 74,725,990,027.26 - Step 5: Solve for x
x = 74,725,990,027.26/403,806.20 - Step 6: Final answer
x = 185,054.09
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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.