Finding the Fourth Proportional to 762,694.13, 1,143,592.63 and 289,412.75
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Solution
The fourth proportional to 762,694.13, 1,143,592.63 and 289,412.75 is: 433,948.91
Step by Step Solution
- Step 1: Write the proportion equation
762,694.13 : 1,143,592.63 = 289,412.75 : x - Step 2: Convert to fraction form
762,694.13/1,143,592.63 = 289,412.75/x - Step 3: Cross multiply
762,694.13x = 1,143,592.63 × 289,412.75 - Step 4: Simplify right side
762,694.13x = 330,970,287,928.03 - Step 5: Solve for x
x = 330,970,287,928.03/762,694.13 - Step 6: Final answer
x = 433,948.91
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.