Finding the Fourth Proportional to 918,382.06, 1,377,739.37 and 378,338.23
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Solution
The fourth proportional to 918,382.06, 1,377,739.37 and 378,338.23 is: 567,575.84
Step by Step Solution
- Step 1: Write the proportion equation
918,382.06 : 1,377,739.37 = 378,338.23 : x - Step 2: Convert to fraction form
918,382.06/1,377,739.37 = 378,338.23/x - Step 3: Cross multiply
918,382.06x = 1,377,739.37 × 378,338.23 - Step 4: Simplify right side
918,382.06x = 521,251,469,311.08 - Step 5: Solve for x
x = 521,251,469,311.08/918,382.06 - Step 6: Final answer
x = 567,575.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.