Finding the Fourth Proportional to 659,649.99, 910,318.74 and 357,843.99
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Solution
The fourth proportional to 659,649.99, 910,318.74 and 357,843.99 is: 493,825.66
Step by Step Solution
- Step 1: Write the proportion equation
659,649.99 : 910,318.74 = 357,843.99 : x - Step 2: Convert to fraction form
659,649.99/910,318.74 = 357,843.99/x - Step 3: Cross multiply
659,649.99x = 910,318.74 × 357,843.99 - Step 4: Simplify right side
659,649.99x = 325,752,090,093.37 - Step 5: Solve for x
x = 325,752,090,093.37/659,649.99 - Step 6: Final answer
x = 493,825.66
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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.