Finding the Fourth Proportional to 805,457.20, 1,208,623.20 and 332,190.40
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Solution
The fourth proportional to 805,457.20, 1,208,623.20 and 332,190.40 is: 498,465.99
Step by Step Solution
- Step 1: Write the proportion equation
805,457.20 : 1,208,623.20 = 332,190.40 : x - Step 2: Convert to fraction form
805,457.20/1,208,623.20 = 332,190.40/x - Step 3: Cross multiply
805,457.20x = 1,208,623.20 × 332,190.40 - Step 4: Simplify right side
805,457.20x = 401,493,024,257.28 - Step 5: Solve for x
x = 401,493,024,257.28/805,457.20 - Step 6: Final answer
x = 498,465.99
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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.