Finding the Fourth Proportional to 1,563,778.11, 2,158,271.99 and 1,073,344.72
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Solution
The fourth proportional to 1,563,778.11, 2,158,271.99 and 1,073,344.72 is: 1,481,392.94
Step by Step Solution
- Step 1: Write the proportion equation
1,563,778.11 : 2,158,271.99 = 1,073,344.72 : x - Step 2: Convert to fraction form
1,563,778.11/2,158,271.99 = 1,073,344.72/x - Step 3: Cross multiply
1,563,778.11x = 2,158,271.99 × 1,073,344.72 - Step 4: Simplify right side
1,563,778.11x = 2,316,569,844,790.39 - Step 5: Solve for x
x = 2,316,569,844,790.39/1,563,778.11 - Step 6: Final answer
x = 1,481,392.94
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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.