Finding the Fourth Proportional to 727,638.12, 1,091,700.08 and 322,774.47
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Solution
The fourth proportional to 727,638.12, 1,091,700.08 and 322,774.47 is: 484,269.45
Step by Step Solution
- Step 1: Write the proportion equation
727,638.12 : 1,091,700.08 = 322,774.47 : x - Step 2: Convert to fraction form
727,638.12/1,091,700.08 = 322,774.47/x - Step 3: Cross multiply
727,638.12x = 1,091,700.08 × 322,774.47 - Step 4: Simplify right side
727,638.12x = 352,372,914,720.96 - Step 5: Solve for x
x = 352,372,914,720.96/727,638.12 - Step 6: Final answer
x = 484,269.45
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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.