Finding the Fourth Proportional to 727,813.80, 1,091,720.70 and 559,657.80
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Solution
The fourth proportional to 727,813.80, 1,091,720.70 and 559,657.80 is: 839,486.70
Step by Step Solution
- Step 1: Write the proportion equation
727,813.80 : 1,091,720.70 = 559,657.80 : x - Step 2: Convert to fraction form
727,813.80/1,091,720.70 = 559,657.80/x - Step 3: Cross multiply
727,813.80x = 1,091,720.70 × 559,657.80 - Step 4: Simplify right side
727,813.80x = 610,990,005,176.46 - Step 5: Solve for x
x = 610,990,005,176.46/727,813.80 - Step 6: Final answer
x = 839,486.70
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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.