Finding the Fourth Proportional to 2,128,614.04, 3,191,225.68 and 1,229,035.36
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Solution
The fourth proportional to 2,128,614.04, 3,191,225.68 and 1,229,035.36 is: 1,842,574.15
Step by Step Solution
- Step 1: Write the proportion equation
2,128,614.04 : 3,191,225.68 = 1,229,035.36 : x - Step 2: Convert to fraction form
2,128,614.04/3,191,225.68 = 1,229,035.36/x - Step 3: Cross multiply
2,128,614.04x = 3,191,225.68 × 1,229,035.36 - Step 4: Simplify right side
2,128,614.04x = 3,922,129,202,460.05 - Step 5: Solve for x
x = 3,922,129,202,460.05/2,128,614.04 - Step 6: Final answer
x = 1,842,574.15
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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.