Finding the Fourth Proportional to 505,137.87, 697,088.84 and 278,781.75
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Solution
The fourth proportional to 505,137.87, 697,088.84 and 278,781.75 is: 384,718.03
Step by Step Solution
- Step 1: Write the proportion equation
505,137.87 : 697,088.84 = 278,781.75 : x - Step 2: Convert to fraction form
505,137.87/697,088.84 = 278,781.75/x - Step 3: Cross multiply
505,137.87x = 697,088.84 × 278,781.75 - Step 4: Simplify right side
505,137.87x = 194,335,645,326.76 - Step 5: Solve for x
x = 194,335,645,326.76/505,137.87 - Step 6: Final answer
x = 384,718.03
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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.