Finding the Fourth Proportional to 717,224.17, 989,775.84 and 394,945.69
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Solution
The fourth proportional to 717,224.17, 989,775.84 and 394,945.69 is: 545,028.62
Step by Step Solution
- Step 1: Write the proportion equation
717,224.17 : 989,775.84 = 394,945.69 : x - Step 2: Convert to fraction form
717,224.17/989,775.84 = 394,945.69/x - Step 3: Cross multiply
717,224.17x = 989,775.84 × 394,945.69 - Step 4: Simplify right side
717,224.17x = 390,907,702,074.13 - Step 5: Solve for x
x = 390,907,702,074.13/717,224.17 - Step 6: Final answer
x = 545,028.62
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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.