Finding the Fourth Proportional to 560,818.77, 773,900.63 and 306,120.75
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Solution
The fourth proportional to 560,818.77, 773,900.63 and 306,120.75 is: 422,430.65
Step by Step Solution
- Step 1: Write the proportion equation
560,818.77 : 773,900.63 = 306,120.75 : x - Step 2: Convert to fraction form
560,818.77/773,900.63 = 306,120.75/x - Step 3: Cross multiply
560,818.77x = 773,900.63 × 306,120.75 - Step 4: Simplify right side
560,818.77x = 236,907,039,750.47 - Step 5: Solve for x
x = 236,907,039,750.47/560,818.77 - Step 6: Final answer
x = 422,430.65
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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.