Finding the Fourth Proportional to 1,838,138.40, 2,754,097.20 and 1,206,727.20
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Solution
The fourth proportional to 1,838,138.40, 2,754,097.20 and 1,206,727.20 is: 1,808,048.84
Step by Step Solution
- Step 1: Write the proportion equation
1,838,138.40 : 2,754,097.20 = 1,206,727.20 : x - Step 2: Convert to fraction form
1,838,138.40/2,754,097.20 = 1,206,727.20/x - Step 3: Cross multiply
1,838,138.40x = 2,754,097.20 × 1,206,727.20 - Step 4: Simplify right side
1,838,138.40x = 3,323,444,002,683.84 - Step 5: Solve for x
x = 3,323,444,002,683.84/1,838,138.40 - Step 6: Final answer
x = 1,808,048.84
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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.