Finding the Fourth Proportional to 691,782.63, 954,660.05 and 389,976.63
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Solution
The fourth proportional to 691,782.63, 954,660.05 and 389,976.63 is: 538,167.76
Step by Step Solution
- Step 1: Write the proportion equation
691,782.63 : 954,660.05 = 389,976.63 : x - Step 2: Convert to fraction form
691,782.63/954,660.05 = 389,976.63/x - Step 3: Cross multiply
691,782.63x = 954,660.05 × 389,976.63 - Step 4: Simplify right side
691,782.63x = 372,295,109,094.63 - Step 5: Solve for x
x = 372,295,109,094.63/691,782.63 - Step 6: Final answer
x = 538,167.76
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.