Finding the Fourth Proportional to 739,257.68, 1,020,176.04 and 399,725.84
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Solution
The fourth proportional to 739,257.68, 1,020,176.04 and 399,725.84 is: 551,621.90
Step by Step Solution
- Step 1: Write the proportion equation
739,257.68 : 1,020,176.04 = 399,725.84 : x - Step 2: Convert to fraction form
739,257.68/1,020,176.04 = 399,725.84/x - Step 3: Cross multiply
739,257.68x = 1,020,176.04 × 399,725.84 - Step 4: Simplify right side
739,257.68x = 407,790,724,536.87 - Step 5: Solve for x
x = 407,790,724,536.87/739,257.68 - Step 6: Final answer
x = 551,621.90
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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.