Finding the Fourth Proportional to 949,399.28, 1,424,224.05 and 309,478.80
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Solution
The fourth proportional to 949,399.28, 1,424,224.05 and 309,478.80 is: 464,258.99
Step by Step Solution
- Step 1: Write the proportion equation
949,399.28 : 1,424,224.05 = 309,478.80 : x - Step 2: Convert to fraction form
949,399.28/1,424,224.05 = 309,478.80/x - Step 3: Cross multiply
949,399.28x = 1,424,224.05 × 309,478.80 - Step 4: Simplify right side
949,399.28x = 440,767,149,925.14 - Step 5: Solve for x
x = 440,767,149,925.14/949,399.28 - Step 6: Final answer
x = 464,258.99
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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.