Finding the Fourth Proportional to 512,998.24, 707,915.62 and 283,543.80
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Solution
The fourth proportional to 512,998.24, 707,915.62 and 283,543.80 is: 391,278.31
Step by Step Solution
- Step 1: Write the proportion equation
512,998.24 : 707,915.62 = 283,543.80 : x - Step 2: Convert to fraction form
512,998.24/707,915.62 = 283,543.80/x - Step 3: Cross multiply
512,998.24x = 707,915.62 × 283,543.80 - Step 4: Simplify right side
512,998.24x = 200,725,084,974.16 - Step 5: Solve for x
x = 200,725,084,974.16/512,998.24 - Step 6: Final answer
x = 391,278.31
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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.