Finding the Fourth Proportional to 2,479,786.61, 3,421,127.58 and 1,432,515.66
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Solution
The fourth proportional to 2,479,786.61, 3,421,127.58 and 1,432,515.66 is: 1,976,306.68
Step by Step Solution
- Step 1: Write the proportion equation
2,479,786.61 : 3,421,127.58 = 1,432,515.66 : x - Step 2: Convert to fraction form
2,479,786.61/3,421,127.58 = 1,432,515.66/x - Step 3: Cross multiply
2,479,786.61x = 3,421,127.58 × 1,432,515.66 - Step 4: Simplify right side
2,479,786.61x = 4,900,818,833,207.90 - Step 5: Solve for x
x = 4,900,818,833,207.90/2,479,786.61 - Step 6: Final answer
x = 1,976,306.68
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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.