Finding the Fourth Proportional to 498,369.81, 688,649.97 and 354,880.74
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Solution
The fourth proportional to 498,369.81, 688,649.97 and 354,880.74 is: 490,376.03
Step by Step Solution
- Step 1: Write the proportion equation
498,369.81 : 688,649.97 = 354,880.74 : x - Step 2: Convert to fraction form
498,369.81/688,649.97 = 354,880.74/x - Step 3: Cross multiply
498,369.81x = 688,649.97 × 354,880.74 - Step 4: Simplify right side
498,369.81x = 244,388,605,736.92 - Step 5: Solve for x
x = 244,388,605,736.92/498,369.81 - Step 6: Final answer
x = 490,376.03
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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.