Finding the Fourth Proportional to 486,805.08, 728,431.38 and 287,221.08
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Solution
The fourth proportional to 486,805.08, 728,431.38 and 287,221.08 is: 429,783.62
Step by Step Solution
- Step 1: Write the proportion equation
486,805.08 : 728,431.38 = 287,221.08 : x - Step 2: Convert to fraction form
486,805.08/728,431.38 = 287,221.08/x - Step 3: Cross multiply
486,805.08x = 728,431.38 × 287,221.08 - Step 4: Simplify right side
486,805.08x = 209,220,847,669.49 - Step 5: Solve for x
x = 209,220,847,669.49/486,805.08 - Step 6: Final answer
x = 429,783.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.