Finding the Fourth Proportional to 756,321.08, 1,043,709.68 and 412,160.04
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Solution
The fourth proportional to 756,321.08, 1,043,709.68 and 412,160.04 is: 568,773.55
Step by Step Solution
- Step 1: Write the proportion equation
756,321.08 : 1,043,709.68 = 412,160.04 : x - Step 2: Convert to fraction form
756,321.08/1,043,709.68 = 412,160.04/x - Step 3: Cross multiply
756,321.08x = 1,043,709.68 × 412,160.04 - Step 4: Simplify right side
756,321.08x = 430,175,423,457.19 - Step 5: Solve for x
x = 430,175,423,457.19/756,321.08 - Step 6: Final answer
x = 568,773.55
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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.