Finding the Fourth Proportional to 668,716.30, 922,820.79 and 366,910.30
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Solution
The fourth proportional to 668,716.30, 922,820.79 and 366,910.30 is: 506,331.99
Step by Step Solution
- Step 1: Write the proportion equation
668,716.30 : 922,820.79 = 366,910.30 : x - Step 2: Convert to fraction form
668,716.30/922,820.79 = 366,910.30/x - Step 3: Cross multiply
668,716.30x = 922,820.79 × 366,910.30 - Step 4: Simplify right side
668,716.30x = 338,592,452,905.14 - Step 5: Solve for x
x = 338,592,452,905.14/668,716.30 - Step 6: Final answer
x = 506,331.99
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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.