Finding the Fourth Proportional to 809,163.60, 1,212,708.60 and 719,998.80
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Solution
The fourth proportional to 809,163.60, 1,212,708.60 and 719,998.80 is: 1,079,075.65
Step by Step Solution
- Step 1: Write the proportion equation
809,163.60 : 1,212,708.60 = 719,998.80 : x - Step 2: Convert to fraction form
809,163.60/1,212,708.60 = 719,998.80/x - Step 3: Cross multiply
809,163.60x = 1,212,708.60 × 719,998.80 - Step 4: Simplify right side
809,163.60x = 873,148,736,749.68 - Step 5: Solve for x
x = 873,148,736,749.68/809,163.60 - Step 6: Final answer
x = 1,079,075.65
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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.