Finding the Fourth Proportional to 438,232.80, 655,966.80 and 313,816.80
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Solution
The fourth proportional to 438,232.80, 655,966.80 and 313,816.80 is: 469,735.27
Step by Step Solution
- Step 1: Write the proportion equation
438,232.80 : 655,966.80 = 313,816.80 : x - Step 2: Convert to fraction form
438,232.80/655,966.80 = 313,816.80/x - Step 3: Cross multiply
438,232.80x = 655,966.80 × 313,816.80 - Step 4: Simplify right side
438,232.80x = 205,853,402,082.24 - Step 5: Solve for x
x = 205,853,402,082.24/438,232.80 - Step 6: Final answer
x = 469,735.27
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1.5x scale
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.