Finding the Fourth Proportional to 616,741.68, 851,056.56 and 374,990.70
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Solution
The fourth proportional to 616,741.68, 851,056.56 and 374,990.70 is: 517,458.61
Step by Step Solution
- Step 1: Write the proportion equation
616,741.68 : 851,056.56 = 374,990.70 : x - Step 2: Convert to fraction form
616,741.68/851,056.56 = 374,990.70/x - Step 3: Cross multiply
616,741.68x = 851,056.56 × 374,990.70 - Step 4: Simplify right side
616,741.68x = 319,138,295,173.99 - Step 5: Solve for x
x = 319,138,295,173.99/616,741.68 - Step 6: Final answer
x = 517,458.61
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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.