Finding the Fourth Proportional to 625,612.14, 863,344.17 and 339,129.72
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Solution
The fourth proportional to 625,612.14, 863,344.17 and 339,129.72 is: 467,998.70
Step by Step Solution
- Step 1: Write the proportion equation
625,612.14 : 863,344.17 = 339,129.72 : x - Step 2: Convert to fraction form
625,612.14/863,344.17 = 339,129.72/x - Step 3: Cross multiply
625,612.14x = 863,344.17 × 339,129.72 - Step 4: Simplify right side
625,612.14x = 292,785,666,635.73 - Step 5: Solve for x
x = 292,785,666,635.73/625,612.14 - Step 6: Final answer
x = 467,998.70
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1.5x scale
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.