Finding the Fourth Proportional to 881,732.20, 1,216,756.74 and 479,324.20
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Solution
The fourth proportional to 881,732.20, 1,216,756.74 and 479,324.20 is: 661,449.08
Step by Step Solution
- Step 1: Write the proportion equation
881,732.20 : 1,216,756.74 = 479,324.20 : x - Step 2: Convert to fraction form
881,732.20/1,216,756.74 = 479,324.20/x - Step 3: Cross multiply
881,732.20x = 1,216,756.74 × 479,324.20 - Step 4: Simplify right side
881,732.20x = 583,220,950,995.11 - Step 5: Solve for x
x = 583,220,950,995.11/881,732.20 - Step 6: Final answer
x = 661,449.08
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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.