Finding the Fourth Proportional to 980,555.82, 1,353,293.43 and 550,918.99
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Solution
The fourth proportional to 980,555.82, 1,353,293.43 and 550,918.99 is: 760,339.22
Step by Step Solution
- Step 1: Write the proportion equation
980,555.82 : 1,353,293.43 = 550,918.99 : x - Step 2: Convert to fraction form
980,555.82/1,353,293.43 = 550,918.99/x - Step 3: Cross multiply
980,555.82x = 1,353,293.43 × 550,918.99 - Step 4: Simplify right side
980,555.82x = 745,555,049,254.91 - Step 5: Solve for x
x = 745,555,049,254.91/980,555.82 - Step 6: Final answer
x = 760,339.22
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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.