Finding the Fourth Proportional to 529,638.92, 730,893.09 and 287,927.58
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Solution
The fourth proportional to 529,638.92, 730,893.09 and 287,927.58 is: 397,335.37
Step by Step Solution
- Step 1: Write the proportion equation
529,638.92 : 730,893.09 = 287,927.58 : x - Step 2: Convert to fraction form
529,638.92/730,893.09 = 287,927.58/x - Step 3: Cross multiply
529,638.92x = 730,893.09 × 287,927.58 - Step 4: Simplify right side
529,638.92x = 210,444,276,732.13 - Step 5: Solve for x
x = 210,444,276,732.13/529,638.92 - Step 6: Final answer
x = 397,335.37
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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.