Finding the Fourth Proportional to 528,672.18, 729,946.75 and 324,996.18
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Solution
The fourth proportional to 528,672.18, 729,946.75 and 324,996.18 is: 448,727.80
Step by Step Solution
- Step 1: Write the proportion equation
528,672.18 : 729,946.75 = 324,996.18 : x - Step 2: Convert to fraction form
528,672.18/729,946.75 = 324,996.18/x - Step 3: Cross multiply
528,672.18x = 729,946.75 × 324,996.18 - Step 4: Simplify right side
528,672.18x = 237,229,905,353.42 - Step 5: Solve for x
x = 237,229,905,353.42/528,672.18 - Step 6: Final answer
x = 448,727.80
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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.