Finding the Fourth Proportional to 2,121,720.24, 2,928,035.68 and 1,154,912.88
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Solution
The fourth proportional to 2,121,720.24, 2,928,035.68 and 1,154,912.88 is: 1,593,813.39
Step by Step Solution
- Step 1: Write the proportion equation
2,121,720.24 : 2,928,035.68 = 1,154,912.88 : x - Step 2: Convert to fraction form
2,121,720.24/2,928,035.68 = 1,154,912.88/x - Step 3: Cross multiply
2,121,720.24x = 2,928,035.68 × 1,154,912.88 - Step 4: Simplify right side
2,121,720.24x = 3,381,626,119,931.56 - Step 5: Solve for x
x = 3,381,626,119,931.56/2,121,720.24 - Step 6: Final answer
x = 1,593,813.39
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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.