Finding the Fourth Proportional to 716,084.91, 987,917.49 and 409,997.70
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Solution
The fourth proportional to 716,084.91, 987,917.49 and 409,997.70 is: 565,636.69
Step by Step Solution
- Step 1: Write the proportion equation
716,084.91 : 987,917.49 = 409,997.70 : x - Step 2: Convert to fraction form
716,084.91/987,917.49 = 409,997.70/x - Step 3: Cross multiply
716,084.91x = 987,917.49 × 409,997.70 - Step 4: Simplify right side
716,084.91x = 405,043,898,689.77 - Step 5: Solve for x
x = 405,043,898,689.77/716,084.91 - Step 6: Final answer
x = 565,636.69
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1.5x scale
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.