Finding the Fourth Proportional to 991,583.58, 1,367,918.64 and 719,053.68
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Solution
The fourth proportional to 991,583.58, 1,367,918.64 and 719,053.68 is: 991,955.65
Step by Step Solution
- Step 1: Write the proportion equation
991,583.58 : 1,367,918.64 = 719,053.68 : x - Step 2: Convert to fraction form
991,583.58/1,367,918.64 = 719,053.68/x - Step 3: Cross multiply
991,583.58x = 1,367,918.64 × 719,053.68 - Step 4: Simplify right side
991,583.58x = 983,606,932,032.60 - Step 5: Solve for x
x = 983,606,932,032.60/991,583.58 - Step 6: Final answer
x = 991,955.65
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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.