Finding the Fourth Proportional to 627,690.99, 866,195.33 and 355,783.92
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Solution
The fourth proportional to 627,690.99, 866,195.33 and 355,783.92 is: 490,971.47
Step by Step Solution
- Step 1: Write the proportion equation
627,690.99 : 866,195.33 = 355,783.92 : x - Step 2: Convert to fraction form
627,690.99/866,195.33 = 355,783.92/x - Step 3: Cross multiply
627,690.99x = 866,195.33 × 355,783.92 - Step 4: Simplify right side
627,690.99x = 308,178,369,993.09 - Step 5: Solve for x
x = 308,178,369,993.09/627,690.99 - Step 6: Final answer
x = 490,971.47
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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.