Finding the Fourth Proportional to 769,637.14, 1,062,396.21 and 688,922.26
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Solution
The fourth proportional to 769,637.14, 1,062,396.21 and 688,922.26 is: 950,978.53
Step by Step Solution
- Step 1: Write the proportion equation
769,637.14 : 1,062,396.21 = 688,922.26 : x - Step 2: Convert to fraction form
769,637.14/1,062,396.21 = 688,922.26/x - Step 3: Cross multiply
769,637.14x = 1,062,396.21 × 688,922.26 - Step 4: Simplify right side
769,637.14x = 731,908,398,008.64 - Step 5: Solve for x
x = 731,908,398,008.64/769,637.14 - Step 6: Final answer
x = 950,978.53
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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.