Finding the Fourth Proportional to 739,181.68, 1,020,069.85 and 399,649.12
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Solution
The fourth proportional to 739,181.68, 1,020,069.85 and 399,649.12 is: 551,515.32
Step by Step Solution
- Step 1: Write the proportion equation
739,181.68 : 1,020,069.85 = 399,649.12 : x - Step 2: Convert to fraction form
739,181.68/1,020,069.85 = 399,649.12/x - Step 3: Cross multiply
739,181.68x = 1,020,069.85 × 399,649.12 - Step 4: Simplify right side
739,181.68x = 407,670,017,891.03 - Step 5: Solve for x
x = 407,670,017,891.03/739,181.68 - Step 6: Final answer
x = 551,515.32
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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.