Finding the Fourth Proportional to 764,832.99, 1,056,548.84 and 612,880.59
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Solution
The fourth proportional to 764,832.99, 1,056,548.84 and 612,880.59 is: 846,640.09
Step by Step Solution
- Step 1: Write the proportion equation
764,832.99 : 1,056,548.84 = 612,880.59 : x - Step 2: Convert to fraction form
764,832.99/1,056,548.84 = 612,880.59/x - Step 3: Cross multiply
764,832.99x = 1,056,548.84 × 612,880.59 - Step 4: Simplify right side
764,832.99x = 647,538,273,358.61 - Step 5: Solve for x
x = 647,538,273,358.61/764,832.99 - Step 6: Final answer
x = 846,640.09
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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.