Finding the Fourth Proportional to 699,485.68, 965,268.66 and 393,579.19
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Solution
The fourth proportional to 699,485.68, 965,268.66 and 393,579.19 is: 543,127.14
Step by Step Solution
- Step 1: Write the proportion equation
699,485.68 : 965,268.66 = 393,579.19 : x - Step 2: Convert to fraction form
699,485.68/965,268.66 = 393,579.19/x - Step 3: Cross multiply
699,485.68x = 965,268.66 × 393,579.19 - Step 4: Simplify right side
699,485.68x = 379,909,657,335.19 - Step 5: Solve for x
x = 379,909,657,335.19/699,485.68 - Step 6: Final answer
x = 543,127.14
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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.