Finding the Fourth Proportional to 621,178.96, 857,199.36 and 379,865.92
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Solution
The fourth proportional to 621,178.96, 857,199.36 and 379,865.92 is: 524,198.09
Step by Step Solution
- Step 1: Write the proportion equation
621,178.96 : 857,199.36 = 379,865.92 : x - Step 2: Convert to fraction form
621,178.96/857,199.36 = 379,865.92/x - Step 3: Cross multiply
621,178.96x = 857,199.36 × 379,865.92 - Step 4: Simplify right side
621,178.96x = 325,620,823,509.81 - Step 5: Solve for x
x = 325,620,823,509.81/621,178.96 - Step 6: Final answer
x = 524,198.09
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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.