Finding the Fourth Proportional to 919,512.64, 1,378,824.72 and 320,459.68
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Solution
The fourth proportional to 919,512.64, 1,378,824.72 and 320,459.68 is: 480,534.70
Step by Step Solution
- Step 1: Write the proportion equation
919,512.64 : 1,378,824.72 = 320,459.68 : x - Step 2: Convert to fraction form
919,512.64/1,378,824.72 = 320,459.68/x - Step 3: Cross multiply
919,512.64x = 1,378,824.72 × 320,459.68 - Step 4: Simplify right side
919,512.64x = 441,857,728,547.29 - Step 5: Solve for x
x = 441,857,728,547.29/919,512.64 - Step 6: Final answer
x = 480,534.70
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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.