Finding the Fourth Proportional to 841,639.60, 1,263,625.80 and 664,346.80
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Solution
The fourth proportional to 841,639.60, 1,263,625.80 and 664,346.80 is: 997,440.90
Step by Step Solution
- Step 1: Write the proportion equation
841,639.60 : 1,263,625.80 = 664,346.80 : x - Step 2: Convert to fraction form
841,639.60/1,263,625.80 = 664,346.80/x - Step 3: Cross multiply
841,639.60x = 1,263,625.80 × 664,346.80 - Step 4: Simplify right side
841,639.60x = 839,485,756,627.44 - Step 5: Solve for x
x = 839,485,756,627.44/841,639.60 - Step 6: Final answer
x = 997,440.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.