Finding the Fourth Proportional to 2,143,644.48, 3,213,020.52 and 863,432.09
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Solution
The fourth proportional to 2,143,644.48, 3,213,020.52 and 863,432.09 is: 1,294,162.84
Step by Step Solution
- Step 1: Write the proportion equation
2,143,644.48 : 3,213,020.52 = 863,432.09 : x - Step 2: Convert to fraction form
2,143,644.48/3,213,020.52 = 863,432.09/x - Step 3: Cross multiply
2,143,644.48x = 3,213,020.52 × 863,432.09 - Step 4: Simplify right side
2,143,644.48x = 2,774,225,018,780.21 - Step 5: Solve for x
x = 2,774,225,018,780.21/2,143,644.48 - Step 6: Final answer
x = 1,294,162.84
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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.