Finding the Fourth Proportional to 664,688.64, 995,283.36 and 397,816.32
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Solution
The fourth proportional to 664,688.64, 995,283.36 and 397,816.32 is: 595,677.34
Step by Step Solution
- Step 1: Write the proportion equation
664,688.64 : 995,283.36 = 397,816.32 : x - Step 2: Convert to fraction form
664,688.64/995,283.36 = 397,816.32/x - Step 3: Cross multiply
664,688.64x = 995,283.36 × 397,816.32 - Step 4: Simplify right side
664,688.64x = 395,939,963,632.44 - Step 5: Solve for x
x = 395,939,963,632.44/664,688.64 - Step 6: Final answer
x = 595,677.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.