Finding the Fourth Proportional to 2,811,134.40, 3,879,318.48 and 1,521,964.32
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Solution
The fourth proportional to 2,811,134.40, 3,879,318.48 and 1,521,964.32 is: 2,100,285.32
Step by Step Solution
- Step 1: Write the proportion equation
2,811,134.40 : 3,879,318.48 = 1,521,964.32 : x - Step 2: Convert to fraction form
2,811,134.40/3,879,318.48 = 1,521,964.32/x - Step 3: Cross multiply
2,811,134.40x = 3,879,318.48 × 1,521,964.32 - Step 4: Simplify right side
2,811,134.40x = 5,904,184,312,476.63 - Step 5: Solve for x
x = 5,904,184,312,476.63/2,811,134.40 - Step 6: Final answer
x = 2,100,285.32
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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.