Finding the Fourth Proportional to 814,102.74, 1,122,164.16 and 641,739.84
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Solution
The fourth proportional to 814,102.74, 1,122,164.16 and 641,739.84 is: 884,578.09
Step by Step Solution
- Step 1: Write the proportion equation
814,102.74 : 1,122,164.16 = 641,739.84 : x - Step 2: Convert to fraction form
814,102.74/1,122,164.16 = 641,739.84/x - Step 3: Cross multiply
814,102.74x = 1,122,164.16 × 641,739.84 - Step 4: Simplify right side
814,102.74x = 720,137,448,492.13 - Step 5: Solve for x
x = 720,137,448,492.13/814,102.74 - Step 6: Final answer
x = 884,578.09
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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.