Finding the Fourth Proportional to 577,389.67, 796,728.21 and 319,231.75
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Solution
The fourth proportional to 577,389.67, 796,728.21 and 319,231.75 is: 440,501.37
Step by Step Solution
- Step 1: Write the proportion equation
577,389.67 : 796,728.21 = 319,231.75 : x - Step 2: Convert to fraction form
577,389.67/796,728.21 = 319,231.75/x - Step 3: Cross multiply
577,389.67x = 796,728.21 × 319,231.75 - Step 4: Simplify right side
577,389.67x = 254,340,940,752.67 - Step 5: Solve for x
x = 254,340,940,752.67/577,389.67 - Step 6: Final answer
x = 440,501.37
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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.