Finding the Fourth Proportional to 743,531.68, 1,113,800.64 and 343,621.72
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Solution
The fourth proportional to 743,531.68, 1,113,800.64 and 343,621.72 is: 514,740.80
Step by Step Solution
- Step 1: Write the proportion equation
743,531.68 : 1,113,800.64 = 343,621.72 : x - Step 2: Convert to fraction form
743,531.68/1,113,800.64 = 343,621.72/x - Step 3: Cross multiply
743,531.68x = 1,113,800.64 × 343,621.72 - Step 4: Simplify right side
743,531.68x = 382,726,091,653.90 - Step 5: Solve for x
x = 382,726,091,653.90/743,531.68 - Step 6: Final answer
x = 514,740.80
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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.