Finding the Fourth Proportional to 627,695.25, 866,201.19 and 355,788.17
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Solution
The fourth proportional to 627,695.25, 866,201.19 and 355,788.17 is: 490,977.32
Step by Step Solution
- Step 1: Write the proportion equation
627,695.25 : 866,201.19 = 355,788.17 : x - Step 2: Convert to fraction form
627,695.25/866,201.19 = 355,788.17/x - Step 3: Cross multiply
627,695.25x = 866,201.19 × 355,788.17 - Step 4: Simplify right side
627,695.25x = 308,184,131,910.92 - Step 5: Solve for x
x = 308,184,131,910.92/627,695.25 - Step 6: Final answer
x = 490,977.32
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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.