Finding the Fourth Proportional to 2,118,983.28, 3,178,404.64 and 920,907.01
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Solution
The fourth proportional to 2,118,983.28, 3,178,404.64 and 920,907.01 is: 1,381,329.97
Step by Step Solution
- Step 1: Write the proportion equation
2,118,983.28 : 3,178,404.64 = 920,907.01 : x - Step 2: Convert to fraction form
2,118,983.28/3,178,404.64 = 920,907.01/x - Step 3: Cross multiply
2,118,983.28x = 3,178,404.64 × 920,907.01 - Step 4: Simplify right side
2,118,983.28x = 2,927,015,113,592.53 - Step 5: Solve for x
x = 2,927,015,113,592.53/2,118,983.28 - Step 6: Final answer
x = 1,381,329.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.