Finding the Fourth Proportional to 506,894.30, 699,440.91 and 280,539.26
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Solution
The fourth proportional to 506,894.30, 699,440.91 and 280,539.26 is: 387,103.65
Step by Step Solution
- Step 1: Write the proportion equation
506,894.30 : 699,440.91 = 280,539.26 : x - Step 2: Convert to fraction form
506,894.30/699,440.91 = 280,539.26/x - Step 3: Cross multiply
506,894.30x = 699,440.91 × 280,539.26 - Step 4: Simplify right side
506,894.30x = 196,220,635,305.13 - Step 5: Solve for x
x = 196,220,635,305.13/506,894.30 - Step 6: Final answer
x = 387,103.65
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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.