Finding the Fourth Proportional to 769,638.14, 1,062,397.59 and 688,923.26
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Solution
The fourth proportional to 769,638.14, 1,062,397.59 and 688,923.26 is: 950,979.91
Step by Step Solution
- Step 1: Write the proportion equation
769,638.14 : 1,062,397.59 = 688,923.26 : x - Step 2: Convert to fraction form
769,638.14/1,062,397.59 = 688,923.26/x - Step 3: Cross multiply
769,638.14x = 1,062,397.59 × 688,923.26 - Step 4: Simplify right side
769,638.14x = 731,910,411,118.94 - Step 5: Solve for x
x = 731,910,411,118.94/769,638.14 - Step 6: Final answer
x = 950,979.91
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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.