Finding the Fourth Proportional to 1,248,840.18, 1,722,997.11 and 764,900.82
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Solution
The fourth proportional to 1,248,840.18, 1,722,997.11 and 764,900.82 is: 1,055,316.70
Step by Step Solution
- Step 1: Write the proportion equation
1,248,840.18 : 1,722,997.11 = 764,900.82 : x - Step 2: Convert to fraction form
1,248,840.18/1,722,997.11 = 764,900.82/x - Step 3: Cross multiply
1,248,840.18x = 1,722,997.11 × 764,900.82 - Step 4: Simplify right side
1,248,840.18x = 1,317,921,902,296.63 - Step 5: Solve for x
x = 1,317,921,902,296.63/1,248,840.18 - Step 6: Final answer
x = 1,055,316.70
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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.