Finding the Fourth Proportional to 991,675.09, 1,368,511.77 and 538,966.09
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Solution
The fourth proportional to 991,675.09, 1,368,511.77 and 538,966.09 is: 743,773.28
Step by Step Solution
- Step 1: Write the proportion equation
991,675.09 : 1,368,511.77 = 538,966.09 : x - Step 2: Convert to fraction form
991,675.09/1,368,511.77 = 538,966.09/x - Step 3: Cross multiply
991,675.09x = 1,368,511.77 × 538,966.09 - Step 4: Simplify right side
991,675.09x = 737,581,437,795.88 - Step 5: Solve for x
x = 737,581,437,795.88/991,675.09 - Step 6: Final answer
x = 743,773.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.