Finding the Fourth Proportional to 505,236.87, 697,177.26 and 278,867.79
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Solution
The fourth proportional to 505,236.87, 697,177.26 and 278,867.79 is: 384,810.16
Step by Step Solution
- Step 1: Write the proportion equation
505,236.87 : 697,177.26 = 278,867.79 : x - Step 2: Convert to fraction form
505,236.87/697,177.26 = 278,867.79/x - Step 3: Cross multiply
505,236.87x = 697,177.26 × 278,867.79 - Step 4: Simplify right side
505,236.87x = 194,420,281,734.46 - Step 5: Solve for x
x = 194,420,281,734.46/505,236.87 - Step 6: Final answer
x = 384,810.16
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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.