Finding the Fourth Proportional to 918,576.04, 1,374,916.05 and 491,043.05
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Solution
The fourth proportional to 918,576.04, 1,374,916.05 and 491,043.05 is: 734,988.66
Step by Step Solution
- Step 1: Write the proportion equation
918,576.04 : 1,374,916.05 = 491,043.05 : x - Step 2: Convert to fraction form
918,576.04/1,374,916.05 = 491,043.05/x - Step 3: Cross multiply
918,576.04x = 1,374,916.05 × 491,043.05 - Step 4: Simplify right side
918,576.04x = 675,142,970,685.95 - Step 5: Solve for x
x = 675,142,970,685.95/918,576.04 - Step 6: Final answer
x = 734,988.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.