Finding the Fourth Proportional to 478,190.87, 659,705.35 and 284,559.81
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Solution
The fourth proportional to 478,190.87, 659,705.35 and 284,559.81 is: 392,574.68
Step by Step Solution
- Step 1: Write the proportion equation
478,190.87 : 659,705.35 = 284,559.81 : x - Step 2: Convert to fraction form
478,190.87/659,705.35 = 284,559.81/x - Step 3: Cross multiply
478,190.87x = 659,705.35 × 284,559.81 - Step 4: Simplify right side
478,190.87x = 187,725,629,051.98 - Step 5: Solve for x
x = 187,725,629,051.98/478,190.87 - Step 6: Final answer
x = 392,574.68
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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.