Finding the Fourth Proportional to 717,740.58, 990,504.36 and 411,872.97
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Solution
The fourth proportional to 717,740.58, 990,504.36 and 411,872.97 is: 568,397.53
Step by Step Solution
- Step 1: Write the proportion equation
717,740.58 : 990,504.36 = 411,872.97 : x - Step 2: Convert to fraction form
717,740.58/990,504.36 = 411,872.97/x - Step 3: Cross multiply
717,740.58x = 990,504.36 × 411,872.97 - Step 4: Simplify right side
717,740.58x = 407,961,972,551.15 - Step 5: Solve for x
x = 407,961,972,551.15/717,740.58 - Step 6: Final answer
x = 568,397.53
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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.