Finding the Fourth Proportional to 762,315.87, 1,143,579.39 and 257,021.49
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Solution
The fourth proportional to 762,315.87, 1,143,579.39 and 257,021.49 is: 385,567.83
Step by Step Solution
- Step 1: Write the proportion equation
762,315.87 : 1,143,579.39 = 257,021.49 : x - Step 2: Convert to fraction form
762,315.87/1,143,579.39 = 257,021.49/x - Step 3: Cross multiply
762,315.87x = 1,143,579.39 × 257,021.49 - Step 4: Simplify right side
762,315.87x = 293,924,478,751.09 - Step 5: Solve for x
x = 293,924,478,751.09/762,315.87 - Step 6: Final answer
x = 385,567.83
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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.