Finding the Fourth Proportional to 667,997.80, 1,001,996.70 and 628,631.80
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Solution
The fourth proportional to 667,997.80, 1,001,996.70 and 628,631.80 is: 942,947.70
Step by Step Solution
- Step 1: Write the proportion equation
667,997.80 : 1,001,996.70 = 628,631.80 : x - Step 2: Convert to fraction form
667,997.80/1,001,996.70 = 628,631.80/x - Step 3: Cross multiply
667,997.80x = 1,001,996.70 × 628,631.80 - Step 4: Simplify right side
667,997.80x = 629,886,989,115.06 - Step 5: Solve for x
x = 629,886,989,115.06/667,997.80 - Step 6: Final answer
x = 942,947.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.