Finding the Fourth Proportional to 747,904.10, 1,121,856.15 and 449,305.70
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Solution
The fourth proportional to 747,904.10, 1,121,856.15 and 449,305.70 is: 673,958.55
Step by Step Solution
- Step 1: Write the proportion equation
747,904.10 : 1,121,856.15 = 449,305.70 : x - Step 2: Convert to fraction form
747,904.10/1,121,856.15 = 449,305.70/x - Step 3: Cross multiply
747,904.10x = 1,121,856.15 × 449,305.70 - Step 4: Simplify right side
747,904.10x = 504,056,362,775.06 - Step 5: Solve for x
x = 504,056,362,775.06/747,904.10 - Step 6: Final answer
x = 673,958.55
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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.