Finding the Fourth Proportional to 991,992.26, 1,368,960.82 and 550,475.90
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Solution
The fourth proportional to 991,992.26, 1,368,960.82 and 550,475.90 is: 759,663.12
Step by Step Solution
- Step 1: Write the proportion equation
991,992.26 : 1,368,960.82 = 550,475.90 : x - Step 2: Convert to fraction form
991,992.26/1,368,960.82 = 550,475.90/x - Step 3: Cross multiply
991,992.26x = 1,368,960.82 × 550,475.90 - Step 4: Simplify right side
991,992.26x = 753,579,939,454.24 - Step 5: Solve for x
x = 753,579,939,454.24/991,992.26 - Step 6: Final answer
x = 759,663.12
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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.