Finding the Fourth Proportional to 511,257.06, 705,539.70 and 281,823.28
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Solution
The fourth proportional to 511,257.06, 705,539.70 and 281,823.28 is: 388,918.86
Step by Step Solution
- Step 1: Write the proportion equation
511,257.06 : 705,539.70 = 281,823.28 : x - Step 2: Convert to fraction form
511,257.06/705,539.70 = 281,823.28/x - Step 3: Cross multiply
511,257.06x = 705,539.70 × 281,823.28 - Step 4: Simplify right side
511,257.06x = 198,837,512,424.22 - Step 5: Solve for x
x = 198,837,512,424.22/511,257.06 - Step 6: Final answer
x = 388,918.86
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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.