Finding the Fourth Proportional to 498,170.25, 687,471.30 and 283,310.06
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Solution
The fourth proportional to 498,170.25, 687,471.30 and 283,310.06 is: 390,965.80
Step by Step Solution
- Step 1: Write the proportion equation
498,170.25 : 687,471.30 = 283,310.06 : x - Step 2: Convert to fraction form
498,170.25/687,471.30 = 283,310.06/x - Step 3: Cross multiply
498,170.25x = 687,471.30 × 283,310.06 - Step 4: Simplify right side
498,170.25x = 194,767,531,813.92 - Step 5: Solve for x
x = 194,767,531,813.92/498,170.25 - Step 6: Final answer
x = 390,965.80
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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.