Finding the Fourth Proportional to 764,576.90, 1,055,276.68 and 484,993.26
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Solution
The fourth proportional to 764,576.90, 1,055,276.68 and 484,993.26 is: 669,392.55
Step by Step Solution
- Step 1: Write the proportion equation
764,576.90 : 1,055,276.68 = 484,993.26 : x - Step 2: Convert to fraction form
764,576.90/1,055,276.68 = 484,993.26/x - Step 3: Cross multiply
764,576.90x = 1,055,276.68 × 484,993.26 - Step 4: Simplify right side
764,576.90x = 511,802,077,235.18 - Step 5: Solve for x
x = 511,802,077,235.18/764,576.90 - Step 6: Final answer
x = 669,392.55
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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.