Finding the Fourth Proportional to 528,893.81, 729,865.99 and 299,445.18
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Solution
The fourth proportional to 528,893.81, 729,865.99 and 299,445.18 is: 413,230.12
Step by Step Solution
- Step 1: Write the proportion equation
528,893.81 : 729,865.99 = 299,445.18 : x - Step 2: Convert to fraction form
528,893.81/729,865.99 = 299,445.18/x - Step 3: Cross multiply
528,893.81x = 729,865.99 × 299,445.18 - Step 4: Simplify right side
528,893.81x = 218,554,852,751.43 - Step 5: Solve for x
x = 218,554,852,751.43/528,893.81 - Step 6: Final answer
x = 413,230.12
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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.