Finding the Fourth Proportional to 756,450.72, 1,043,898.84 and 416,918.88
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Solution
The fourth proportional to 756,450.72, 1,043,898.84 and 416,918.88 is: 575,346.32
Step by Step Solution
- Step 1: Write the proportion equation
756,450.72 : 1,043,898.84 = 416,918.88 : x - Step 2: Convert to fraction form
756,450.72/1,043,898.84 = 416,918.88/x - Step 3: Cross multiply
756,450.72x = 1,043,898.84 × 416,918.88 - Step 4: Simplify right side
756,450.72x = 435,221,135,206.10 - Step 5: Solve for x
x = 435,221,135,206.10/756,450.72 - Step 6: Final answer
x = 575,346.32
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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.