Finding the Fourth Proportional to 993,215.23, 1,489,812.18 and 657,756.70
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Solution
The fourth proportional to 993,215.23, 1,489,812.18 and 657,756.70 is: 986,627.99
Step by Step Solution
- Step 1: Write the proportion equation
993,215.23 : 1,489,812.18 = 657,756.70 : x - Step 2: Convert to fraction form
993,215.23/1,489,812.18 = 657,756.70/x - Step 3: Cross multiply
993,215.23x = 1,489,812.18 × 657,756.70 - Step 4: Simplify right side
993,215.23x = 979,933,943,136.61 - Step 5: Solve for x
x = 979,933,943,136.61/993,215.23 - Step 6: Final answer
x = 986,627.99
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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.