Finding the Fourth Proportional to 740,652.85, 1,022,163.87 and 418,422.09
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Solution
The fourth proportional to 740,652.85, 1,022,163.87 and 418,422.09 is: 577,458.04
Step by Step Solution
- Step 1: Write the proportion equation
740,652.85 : 1,022,163.87 = 418,422.09 : x - Step 2: Convert to fraction form
740,652.85/1,022,163.87 = 418,422.09/x - Step 3: Cross multiply
740,652.85x = 1,022,163.87 × 418,422.09 - Step 4: Simplify right side
740,652.85x = 427,695,942,807.89 - Step 5: Solve for x
x = 427,695,942,807.89/740,652.85 - Step 6: Final answer
x = 577,458.04
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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.