Finding the Fourth Proportional to 4,330,881.80, 6,496,905.90 and 1,491,864.20
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Solution
The fourth proportional to 4,330,881.80, 6,496,905.90 and 1,491,864.20 is: 2,237,997.20
Step by Step Solution
- Step 1: Write the proportion equation
4,330,881.80 : 6,496,905.90 = 1,491,864.20 : x - Step 2: Convert to fraction form
4,330,881.80/6,496,905.90 = 1,491,864.20/x - Step 3: Cross multiply
4,330,881.80x = 6,496,905.90 × 1,491,864.20 - Step 4: Simplify right side
4,330,881.80x = 9,692,501,322,978.78 - Step 5: Solve for x
x = 9,692,501,322,978.78/4,330,881.80 - Step 6: Final answer
x = 2,237,997.20
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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.