Finding the Fourth Proportional to 697,921.20, 1,046,137.44 and 397,755.45
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Solution
The fourth proportional to 697,921.20, 1,046,137.44 and 397,755.45 is: 596,208.95
Step by Step Solution
- Step 1: Write the proportion equation
697,921.20 : 1,046,137.44 = 397,755.45 : x - Step 2: Convert to fraction form
697,921.20/1,046,137.44 = 397,755.45/x - Step 3: Cross multiply
697,921.20x = 1,046,137.44 × 397,755.45 - Step 4: Simplify right side
697,921.20x = 416,106,868,209.05 - Step 5: Solve for x
x = 416,106,868,209.05/697,921.20 - Step 6: Final answer
x = 596,208.95
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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.