Finding the Fourth Proportional to 505,794.35, 697,987.96 and 276,346.70
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Solution
The fourth proportional to 505,794.35, 697,987.96 and 276,346.70 is: 381,353.95
Step by Step Solution
- Step 1: Write the proportion equation
505,794.35 : 697,987.96 = 276,346.70 : x - Step 2: Convert to fraction form
505,794.35/697,987.96 = 276,346.70/x - Step 3: Cross multiply
505,794.35x = 697,987.96 × 276,346.70 - Step 4: Simplify right side
505,794.35x = 192,886,672,525.79 - Step 5: Solve for x
x = 192,886,672,525.79/505,794.35 - Step 6: Final answer
x = 381,353.95
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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.