Finding the Fourth Proportional to 910,857.80, 1,366,286.70 and 349,905.80
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Solution
The fourth proportional to 910,857.80, 1,366,286.70 and 349,905.80 is: 524,858.70
Step by Step Solution
- Step 1: Write the proportion equation
910,857.80 : 1,366,286.70 = 349,905.80 : x - Step 2: Convert to fraction form
910,857.80/1,366,286.70 = 349,905.80/x - Step 3: Cross multiply
910,857.80x = 1,366,286.70 × 349,905.80 - Step 4: Simplify right side
910,857.80x = 478,071,640,792.86 - Step 5: Solve for x
x = 478,071,640,792.86/910,857.80 - Step 6: Final answer
x = 524,858.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.