Finding the Fourth Proportional to 527,343.84, 727,734.96 and 288,879.84
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Solution
The fourth proportional to 527,343.84, 727,734.96 and 288,879.84 is: 398,654.43
Step by Step Solution
- Step 1: Write the proportion equation
527,343.84 : 727,734.96 = 288,879.84 : x - Step 2: Convert to fraction form
527,343.84/727,734.96 = 288,879.84/x - Step 3: Cross multiply
527,343.84x = 727,734.96 × 288,879.84 - Step 4: Simplify right side
527,343.84x = 210,227,958,807.21 - Step 5: Solve for x
x = 210,227,958,807.21/527,343.84 - Step 6: Final answer
x = 398,654.43
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1.5x scale
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.