Finding the Fourth Proportional to 912,890.49, 1,259,364.42 and 590,704.62
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Solution
The fourth proportional to 912,890.49, 1,259,364.42 and 590,704.62 is: 814,897.72
Step by Step Solution
- Step 1: Write the proportion equation
912,890.49 : 1,259,364.42 = 590,704.62 : x - Step 2: Convert to fraction form
912,890.49/1,259,364.42 = 590,704.62/x - Step 3: Cross multiply
912,890.49x = 1,259,364.42 × 590,704.62 - Step 4: Simplify right side
912,890.49x = 743,912,381,157.62 - Step 5: Solve for x
x = 743,912,381,157.62/912,890.49 - Step 6: Final answer
x = 814,897.72
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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.