Finding the Fourth Proportional to 455,366.70, 638,446.50 and 455,366.70
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Solution
The fourth proportional to 455,366.70, 638,446.50 and 455,366.70 is: 638,446.50
Step by Step Solution
- Step 1: Write the proportion equation
455,366.70 : 638,446.50 = 455,366.70 : x - Step 2: Convert to fraction form
455,366.70/638,446.50 = 455,366.70/x - Step 3: Cross multiply
455,366.70x = 638,446.50 × 455,366.70 - Step 4: Simplify right side
455,366.70x = 290,727,275,831.55 - Step 5: Solve for x
x = 290,727,275,831.55/455,366.70 - Step 6: Final answer
x = 638,446.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.