Finding the Fourth Proportional to 717,788.97, 990,538.19 and 411,858.65
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Solution
The fourth proportional to 717,788.97, 990,538.19 and 411,858.65 is: 568,358.86
Step by Step Solution
- Step 1: Write the proportion equation
717,788.97 : 990,538.19 = 411,858.65 : x - Step 2: Convert to fraction form
717,788.97/990,538.19 = 411,858.65/x - Step 3: Cross multiply
717,788.97x = 990,538.19 × 411,858.65 - Step 4: Simplify right side
717,788.97x = 407,961,721,706.84 - Step 5: Solve for x
x = 407,961,721,706.84/717,788.97 - Step 6: Final answer
x = 568,358.86
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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.