Finding the Fourth Proportional to 668,716.20, 922,828.25 and 382,242.44
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Solution
The fourth proportional to 668,716.20, 922,828.25 and 382,242.44 is: 527,494.50
Step by Step Solution
- Step 1: Write the proportion equation
668,716.20 : 922,828.25 = 382,242.44 : x - Step 2: Convert to fraction form
668,716.20/922,828.25 = 382,242.44/x - Step 3: Cross multiply
668,716.20x = 922,828.25 × 382,242.44 - Step 4: Simplify right side
668,716.20x = 352,744,115,455.58 - Step 5: Solve for x
x = 352,744,115,455.58/668,716.20 - Step 6: Final answer
x = 527,494.50
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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.