Finding the Fourth Proportional to 813,362.34, 1,220,113.98 and 214,318.74
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Solution
The fourth proportional to 813,362.34, 1,220,113.98 and 214,318.74 is: 321,496.68
Step by Step Solution
- Step 1: Write the proportion equation
813,362.34 : 1,220,113.98 = 214,318.74 : x - Step 2: Convert to fraction form
813,362.34/1,220,113.98 = 214,318.74/x - Step 3: Cross multiply
813,362.34x = 1,220,113.98 × 214,318.74 - Step 4: Simplify right side
813,362.34x = 261,493,290,849.99 - Step 5: Solve for x
x = 261,493,290,849.99/813,362.34 - Step 6: Final answer
x = 321,496.68
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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.