Finding the Fourth Proportional to 717,862.17, 990,688.77 and 411,936.03
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Solution
The fourth proportional to 717,862.17, 990,688.77 and 411,936.03 is: 568,494.09
Step by Step Solution
- Step 1: Write the proportion equation
717,862.17 : 990,688.77 = 411,936.03 : x - Step 2: Convert to fraction form
717,862.17/990,688.77 = 411,936.03/x - Step 3: Cross multiply
717,862.17x = 990,688.77 × 411,936.03 - Step 4: Simplify right side
717,862.17x = 408,100,398,879.38 - Step 5: Solve for x
x = 408,100,398,879.38/717,862.17 - Step 6: Final answer
x = 568,494.09
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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.