Finding the Fourth Proportional to 3,218,981.20, 4,828,471.80 and 975,119.20
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Solution
The fourth proportional to 3,218,981.20, 4,828,471.80 and 975,119.20 is: 1,462,678.80
Step by Step Solution
- Step 1: Write the proportion equation
3,218,981.20 : 4,828,471.80 = 975,119.20 : x - Step 2: Convert to fraction form
3,218,981.20/4,828,471.80 = 975,119.20/x - Step 3: Cross multiply
3,218,981.20x = 4,828,471.80 × 975,119.20 - Step 4: Simplify right side
3,218,981.20x = 4,708,335,558,838.56 - Step 5: Solve for x
x = 4,708,335,558,838.56/3,218,981.20 - Step 6: Final answer
x = 1,462,678.80
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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.