Finding the Fourth Proportional to 660,546.41, 990,814.32 and 392,531.99
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Solution
The fourth proportional to 660,546.41, 990,814.32 and 392,531.99 is: 588,794.84
Step by Step Solution
- Step 1: Write the proportion equation
660,546.41 : 990,814.32 = 392,531.99 : x - Step 2: Convert to fraction form
660,546.41/990,814.32 = 392,531.99/x - Step 3: Cross multiply
660,546.41x = 990,814.32 × 392,531.99 - Step 4: Simplify right side
660,546.41x = 388,926,316,750.10 - Step 5: Solve for x
x = 388,926,316,750.10/660,546.41 - Step 6: Final answer
x = 588,794.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.