Finding the Fourth Proportional to 890,806.55, 1,229,789.99 and 696,802.03
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Solution
The fourth proportional to 890,806.55, 1,229,789.99 and 696,802.03 is: 961,959.88
Step by Step Solution
- Step 1: Write the proportion equation
890,806.55 : 1,229,789.99 = 696,802.03 : x - Step 2: Convert to fraction form
890,806.55/1,229,789.99 = 696,802.03/x - Step 3: Cross multiply
890,806.55x = 1,229,789.99 × 696,802.03 - Step 4: Simplify right side
890,806.55x = 856,920,160,173.21 - Step 5: Solve for x
x = 856,920,160,173.21/890,806.55 - Step 6: Final answer
x = 961,959.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.