Finding the Fourth Proportional to 991,602.60, 1,367,944.84 and 719,072.68
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Solution
The fourth proportional to 991,602.60, 1,367,944.84 and 719,072.68 is: 991,981.83
Step by Step Solution
- Step 1: Write the proportion equation
991,602.60 : 1,367,944.84 = 719,072.68 : x - Step 2: Convert to fraction form
991,602.60/1,367,944.84 = 719,072.68/x - Step 3: Cross multiply
991,602.60x = 1,367,944.84 × 719,072.68 - Step 4: Simplify right side
991,602.60x = 983,651,762,190.97 - Step 5: Solve for x
x = 983,651,762,190.97/991,602.60 - Step 6: Final answer
x = 991,981.83
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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.