Finding the Fourth Proportional to 505,535.99, 697,633.86 and 290,676.90
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Solution
The fourth proportional to 505,535.99, 697,633.86 and 290,676.90 is: 401,130.79
Step by Step Solution
- Step 1: Write the proportion equation
505,535.99 : 697,633.86 = 290,676.90 : x - Step 2: Convert to fraction form
505,535.99/697,633.86 = 290,676.90/x - Step 3: Cross multiply
505,535.99x = 697,633.86 × 290,676.90 - Step 4: Simplify right side
505,535.99x = 202,786,051,466.00 - Step 5: Solve for x
x = 202,786,051,466.00/505,535.99 - Step 6: Final answer
x = 401,130.79
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1.5x scale
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.