Finding the Fourth Proportional to 505,182.88, 697,102.74 and 278,813.80
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Solution
The fourth proportional to 505,182.88, 697,102.74 and 278,813.80 is: 384,735.65
Step by Step Solution
- Step 1: Write the proportion equation
505,182.88 : 697,102.74 = 278,813.80 : x - Step 2: Convert to fraction form
505,182.88/697,102.74 = 278,813.80/x - Step 3: Cross multiply
505,182.88x = 697,102.74 × 278,813.80 - Step 4: Simplify right side
505,182.88x = 194,361,863,929.81 - Step 5: Solve for x
x = 194,361,863,929.81/505,182.88 - Step 6: Final answer
x = 384,735.65
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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.