Finding the Fourth Proportional to 664,355.40, 996,533.10 and 265,057.80
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Solution
The fourth proportional to 664,355.40, 996,533.10 and 265,057.80 is: 397,586.70
Step by Step Solution
- Step 1: Write the proportion equation
664,355.40 : 996,533.10 = 265,057.80 : x - Step 2: Convert to fraction form
664,355.40/996,533.10 = 265,057.80/x - Step 3: Cross multiply
664,355.40x = 996,533.10 × 265,057.80 - Step 4: Simplify right side
664,355.40x = 264,138,871,113.18 - Step 5: Solve for x
x = 264,138,871,113.18/664,355.40 - Step 6: Final answer
x = 397,586.70
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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.