Finding the Fourth Proportional to 980,619.21, 1,350,126.23 and 836,802.09
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Solution
The fourth proportional to 980,619.21, 1,350,126.23 and 836,802.09 is: 1,152,117.39
Step by Step Solution
- Step 1: Write the proportion equation
980,619.21 : 1,350,126.23 = 836,802.09 : x - Step 2: Convert to fraction form
980,619.21/1,350,126.23 = 836,802.09/x - Step 3: Cross multiply
980,619.21x = 1,350,126.23 × 836,802.09 - Step 4: Simplify right side
980,619.21x = 1,129,788,446,843.81 - Step 5: Solve for x
x = 1,129,788,446,843.81/980,619.21 - Step 6: Final answer
x = 1,152,117.39
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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.