Finding the Fourth Proportional to 828,193.01, 1,242,348.84 and 220,978.13
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Solution
The fourth proportional to 828,193.01, 1,242,348.84 and 220,978.13 is: 331,483.02
Step by Step Solution
- Step 1: Write the proportion equation
828,193.01 : 1,242,348.84 = 220,978.13 : x - Step 2: Convert to fraction form
828,193.01/1,242,348.84 = 220,978.13/x - Step 3: Cross multiply
828,193.01x = 1,242,348.84 × 220,978.13 - Step 4: Simplify right side
828,193.01x = 274,531,917,259.13 - Step 5: Solve for x
x = 274,531,917,259.13/828,193.01 - Step 6: Final answer
x = 331,483.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.