Finding the Fourth Proportional to 2,116,378.48, 2,920,623.74 and 1,149,527.66
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Solution
The fourth proportional to 2,116,378.48, 2,920,623.74 and 1,149,527.66 is: 1,586,359.81
Step by Step Solution
- Step 1: Write the proportion equation
2,116,378.48 : 2,920,623.74 = 1,149,527.66 : x - Step 2: Convert to fraction form
2,116,378.48/2,920,623.74 = 1,149,527.66/x - Step 3: Cross multiply
2,116,378.48x = 2,920,623.74 × 1,149,527.66 - Step 4: Simplify right side
2,116,378.48x = 3,357,337,773,582.65 - Step 5: Solve for x
x = 3,357,337,773,582.65/2,116,378.48 - Step 6: Final answer
x = 1,586,359.81
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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.