Finding the Fourth Proportional to 989,467.62, 1,365,489.81 and 607,277.22
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Solution
The fourth proportional to 989,467.62, 1,365,489.81 and 607,277.22 is: 838,057.60
Step by Step Solution
- Step 1: Write the proportion equation
989,467.62 : 1,365,489.81 = 607,277.22 : x - Step 2: Convert to fraction form
989,467.62/1,365,489.81 = 607,277.22/x - Step 3: Cross multiply
989,467.62x = 1,365,489.81 × 607,277.22 - Step 4: Simplify right side
989,467.62x = 829,230,855,755.13 - Step 5: Solve for x
x = 829,230,855,755.13/989,467.62 - Step 6: Final answer
x = 838,057.60
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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.