Finding the Fourth Proportional to 498,569.21, 687,198.26 and 353,188.71
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Solution
The fourth proportional to 498,569.21, 687,198.26 and 353,188.71 is: 486,814.39
Step by Step Solution
- Step 1: Write the proportion equation
498,569.21 : 687,198.26 = 353,188.71 : x - Step 2: Convert to fraction form
498,569.21/687,198.26 = 353,188.71/x - Step 3: Cross multiply
498,569.21x = 687,198.26 × 353,188.71 - Step 4: Simplify right side
498,569.21x = 242,710,665,197.70 - Step 5: Solve for x
x = 242,710,665,197.70/498,569.21 - Step 6: Final answer
x = 486,814.39
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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.