Finding the Fourth Proportional to 695,081.36, 958,989.21 and 389,112.68
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Solution
The fourth proportional to 695,081.36, 958,989.21 and 389,112.68 is: 536,850.62
Step by Step Solution
- Step 1: Write the proportion equation
695,081.36 : 958,989.21 = 389,112.68 : x - Step 2: Convert to fraction form
695,081.36/958,989.21 = 389,112.68/x - Step 3: Cross multiply
695,081.36x = 958,989.21 × 389,112.68 - Step 4: Simplify right side
695,081.36x = 373,154,856,799.24 - Step 5: Solve for x
x = 373,154,856,799.24/695,081.36 - Step 6: Final answer
x = 536,850.62
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.