Finding the Fourth Proportional to 1,578,722.28, 2,178,604.26 and 863,330.28
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Solution
The fourth proportional to 1,578,722.28, 2,178,604.26 and 863,330.28 is: 1,191,378.02
Step by Step Solution
- Step 1: Write the proportion equation
1,578,722.28 : 2,178,604.26 = 863,330.28 : x - Step 2: Convert to fraction form
1,578,722.28/2,178,604.26 = 863,330.28/x - Step 3: Cross multiply
1,578,722.28x = 2,178,604.26 × 863,330.28 - Step 4: Simplify right side
1,578,722.28x = 1,880,855,025,794.99 - Step 5: Solve for x
x = 1,880,855,025,794.99/1,578,722.28 - Step 6: Final answer
x = 1,191,378.02
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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.