Finding the Fourth Proportional to 881,324.28, 1,216,235.16 and 478,916.28
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Solution
The fourth proportional to 881,324.28, 1,216,235.16 and 478,916.28 is: 660,908.63
Step by Step Solution
- Step 1: Write the proportion equation
881,324.28 : 1,216,235.16 = 478,916.28 : x - Step 2: Convert to fraction form
881,324.28/1,216,235.16 = 478,916.28/x - Step 3: Cross multiply
881,324.28x = 1,216,235.16 × 478,916.28 - Step 4: Simplify right side
881,324.28x = 582,474,818,432.41 - Step 5: Solve for x
x = 582,474,818,432.41/881,324.28 - Step 6: Final answer
x = 660,908.63
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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.