Finding the Fourth Proportional to 702,979.79, 970,110.18 and 380,689.80
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Solution
The fourth proportional to 702,979.79, 970,110.18 and 380,689.80 is: 525,350.88
Step by Step Solution
- Step 1: Write the proportion equation
702,979.79 : 970,110.18 = 380,689.80 : x - Step 2: Convert to fraction form
702,979.79/970,110.18 = 380,689.80/x - Step 3: Cross multiply
702,979.79x = 970,110.18 × 380,689.80 - Step 4: Simplify right side
702,979.79x = 369,311,050,028.04 - Step 5: Solve for x
x = 369,311,050,028.04/702,979.79 - Step 6: Final answer
x = 525,350.88
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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.