Finding the Fourth Proportional to 991,272.75, 1,367,960.04 and 538,563.75
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Solution
The fourth proportional to 991,272.75, 1,367,960.04 and 538,563.75 is: 743,219.96
Step by Step Solution
- Step 1: Write the proportion equation
991,272.75 : 1,367,960.04 = 538,563.75 : x - Step 2: Convert to fraction form
991,272.75/1,367,960.04 = 538,563.75/x - Step 3: Cross multiply
991,272.75x = 1,367,960.04 × 538,563.75 - Step 4: Simplify right side
991,272.75x = 736,733,688,992.55 - Step 5: Solve for x
x = 736,733,688,992.55/991,272.75 - Step 6: Final answer
x = 743,219.96
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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.