Finding the Fourth Proportional to 731,860.88, 1,009,775.97 and 421,687.44
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Solution
The fourth proportional to 731,860.88, 1,009,775.97 and 421,687.44 is: 581,818.02
Step by Step Solution
- Step 1: Write the proportion equation
731,860.88 : 1,009,775.97 = 421,687.44 : x - Step 2: Convert to fraction form
731,860.88/1,009,775.97 = 421,687.44/x - Step 3: Cross multiply
731,860.88x = 1,009,775.97 × 421,687.44 - Step 4: Simplify right side
731,860.88x = 425,809,843,762.82 - Step 5: Solve for x
x = 425,809,843,762.82/731,860.88 - Step 6: Final answer
x = 581,818.02
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.