Finding the Fourth Proportional to 505,748.18, 697,904.48 and 290,891.84
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Solution
The fourth proportional to 505,748.18, 697,904.48 and 290,891.84 is: 401,414.63
Step by Step Solution
- Step 1: Write the proportion equation
505,748.18 : 697,904.48 = 290,891.84 : x - Step 2: Convert to fraction form
505,748.18/697,904.48 = 290,891.84/x - Step 3: Cross multiply
505,748.18x = 697,904.48 × 290,891.84 - Step 4: Simplify right side
505,748.18x = 203,014,718,331.44 - Step 5: Solve for x
x = 203,014,718,331.44/505,748.18 - Step 6: Final answer
x = 401,414.63
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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.