Finding the Fourth Proportional to 668,717.20, 922,829.62 and 382,243.44
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Solution
The fourth proportional to 668,717.20, 922,829.62 and 382,243.44 is: 527,495.88
Step by Step Solution
- Step 1: Write the proportion equation
668,717.20 : 922,829.62 = 382,243.44 : x - Step 2: Convert to fraction form
668,717.20/922,829.62 = 382,243.44/x - Step 3: Cross multiply
668,717.20x = 922,829.62 × 382,243.44 - Step 4: Simplify right side
668,717.20x = 352,745,568,482.69 - Step 5: Solve for x
x = 352,745,568,482.69/668,717.20 - Step 6: Final answer
x = 527,495.88
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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.