Finding the Fourth Proportional to 2,672,389.12, 3,688,047.84 and 1,585,304.32
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Solution
The fourth proportional to 2,672,389.12, 3,688,047.84 and 1,585,304.32 is: 2,187,809.45
Step by Step Solution
- Step 1: Write the proportion equation
2,672,389.12 : 3,688,047.84 = 1,585,304.32 : x - Step 2: Convert to fraction form
2,672,389.12/3,688,047.84 = 1,585,304.32/x - Step 3: Cross multiply
2,672,389.12x = 3,688,047.84 × 1,585,304.32 - Step 4: Simplify right side
2,672,389.12x = 5,846,678,173,118.67 - Step 5: Solve for x
x = 5,846,678,173,118.67/2,672,389.12 - Step 6: Final answer
x = 2,187,809.45
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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.