Finding the Fourth Proportional to 3,218,836.10, 4,828,837.35 and 1,617,368.90
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Solution
The fourth proportional to 3,218,836.10, 4,828,837.35 and 1,617,368.90 is: 2,426,346.39
Step by Step Solution
- Step 1: Write the proportion equation
3,218,836.10 : 4,828,837.35 = 1,617,368.90 : x - Step 2: Convert to fraction form
3,218,836.10/4,828,837.35 = 1,617,368.90/x - Step 3: Cross multiply
3,218,836.10x = 4,828,837.35 × 1,617,368.90 - Step 4: Simplify right side
3,218,836.10x = 7,810,011,353,048.41 - Step 5: Solve for x
x = 7,810,011,353,048.41/3,218,836.10 - Step 6: Final answer
x = 2,426,346.39
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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.