Finding the Fourth Proportional to 528,893.31, 729,865.30 and 299,444.68
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Solution
The fourth proportional to 528,893.31, 729,865.30 and 299,444.68 is: 413,229.42
Step by Step Solution
- Step 1: Write the proportion equation
528,893.31 : 729,865.30 = 299,444.68 : x - Step 2: Convert to fraction form
528,893.31/729,865.30 = 299,444.68/x - Step 3: Cross multiply
528,893.31x = 729,865.30 × 299,444.68 - Step 4: Simplify right side
528,893.31x = 218,554,276,055.05 - Step 5: Solve for x
x = 218,554,276,055.05/528,893.31 - Step 6: Final answer
x = 413,229.42
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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.