Finding the Fourth Proportional to 991,553.80, 1,368,352.92 and 538,844.80
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Solution
The fourth proportional to 991,553.80, 1,368,352.92 and 538,844.80 is: 743,610.54
Step by Step Solution
- Step 1: Write the proportion equation
991,553.80 : 1,368,352.92 = 538,844.80 : x - Step 2: Convert to fraction form
991,553.80/1,368,352.92 = 538,844.80/x - Step 3: Cross multiply
991,553.80x = 1,368,352.92 × 538,844.80 - Step 4: Simplify right side
991,553.80x = 737,329,855,506.82 - Step 5: Solve for x
x = 737,329,855,506.82/991,553.80 - Step 6: Final answer
x = 743,610.54
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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.