Finding the Fourth Proportional to 918,576.42, 1,374,916.50 and 491,043.12
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Solution
The fourth proportional to 918,576.42, 1,374,916.50 and 491,043.12 is: 734,988.70
Step by Step Solution
- Step 1: Write the proportion equation
918,576.42 : 1,374,916.50 = 491,043.12 : x - Step 2: Convert to fraction form
918,576.42/1,374,916.50 = 491,043.12/x - Step 3: Cross multiply
918,576.42x = 1,374,916.50 × 491,043.12 - Step 4: Simplify right side
918,576.42x = 675,143,287,899.48 - Step 5: Solve for x
x = 675,143,287,899.48/918,576.42 - Step 6: Final answer
x = 734,988.70
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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.