Finding the Fourth Proportional to 756,484.18, 1,043,941.42 and 412,320.09
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Solution
The fourth proportional to 756,484.18, 1,043,941.42 and 412,320.09 is: 568,998.05
Step by Step Solution
- Step 1: Write the proportion equation
756,484.18 : 1,043,941.42 = 412,320.09 : x - Step 2: Convert to fraction form
756,484.18/1,043,941.42 = 412,320.09/x - Step 3: Cross multiply
756,484.18x = 1,043,941.42 × 412,320.09 - Step 4: Simplify right side
756,484.18x = 430,438,025,452.41 - Step 5: Solve for x
x = 430,438,025,452.41/756,484.18 - Step 6: Final answer
x = 568,998.05
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1.5x scale
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.