Finding the Fourth Proportional to 2,143,826.19, 2,958,485.18 and 1,177,018.74
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Solution
The fourth proportional to 2,143,826.19, 2,958,485.18 and 1,177,018.74 is: 1,624,288.62
Step by Step Solution
- Step 1: Write the proportion equation
2,143,826.19 : 2,958,485.18 = 1,177,018.74 : x - Step 2: Convert to fraction form
2,143,826.19/2,958,485.18 = 1,177,018.74/x - Step 3: Cross multiply
2,143,826.19x = 2,958,485.18 × 1,177,018.74 - Step 4: Simplify right side
2,143,826.19x = 3,482,192,492,987.18 - Step 5: Solve for x
x = 3,482,192,492,987.18/2,143,826.19 - Step 6: Final answer
x = 1,624,288.62
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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.