Finding the Fourth Proportional to 505,177.88, 697,095.84 and 278,808.80
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Solution
The fourth proportional to 505,177.88, 697,095.84 and 278,808.80 is: 384,728.75
Step by Step Solution
- Step 1: Write the proportion equation
505,177.88 : 697,095.84 = 278,808.80 : x - Step 2: Convert to fraction form
505,177.88/697,095.84 = 278,808.80/x - Step 3: Cross multiply
505,177.88x = 697,095.84 × 278,808.80 - Step 4: Simplify right side
505,177.88x = 194,356,454,635.39 - Step 5: Solve for x
x = 194,356,454,635.39/505,177.88 - Step 6: Final answer
x = 384,728.75
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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.