Finding the Fourth Proportional to 412,906.80, 569,382.84 and 291,992.88
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Solution
The fourth proportional to 412,906.80, 569,382.84 and 291,992.88 is: 402,647.12
Step by Step Solution
- Step 1: Write the proportion equation
412,906.80 : 569,382.84 = 291,992.88 : x - Step 2: Convert to fraction form
412,906.80/569,382.84 = 291,992.88/x - Step 3: Cross multiply
412,906.80x = 569,382.84 × 291,992.88 - Step 4: Simplify right side
412,906.80x = 166,255,735,274.18 - Step 5: Solve for x
x = 166,255,735,274.18/412,906.80 - Step 6: Final answer
x = 402,647.12
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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.