Finding the Fourth Proportional to 665,374.20, 998,687.70 and 350,057.40
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Solution
The fourth proportional to 665,374.20, 998,687.70 and 350,057.40 is: 525,415.65
Step by Step Solution
- Step 1: Write the proportion equation
665,374.20 : 998,687.70 = 350,057.40 : x - Step 2: Convert to fraction form
665,374.20/998,687.70 = 350,057.40/x - Step 3: Cross multiply
665,374.20x = 998,687.70 × 350,057.40 - Step 4: Simplify right side
665,374.20x = 349,598,019,673.98 - Step 5: Solve for x
x = 349,598,019,673.98/665,374.20 - Step 6: Final answer
x = 525,415.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.