Finding the Fourth Proportional to 531,129.61, 796,929.86 and 278,349.99
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Solution
The fourth proportional to 531,129.61, 796,929.86 and 278,349.99 is: 417,648.38
Step by Step Solution
- Step 1: Write the proportion equation
531,129.61 : 796,929.86 = 278,349.99 : x - Step 2: Convert to fraction form
531,129.61/796,929.86 = 278,349.99/x - Step 3: Cross multiply
531,129.61x = 796,929.86 × 278,349.99 - Step 4: Simplify right side
531,129.61x = 221,825,418,561.70 - Step 5: Solve for x
x = 221,825,418,561.70/531,129.61 - Step 6: Final answer
x = 417,648.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.