Finding the Fourth Proportional to 1,226,676.42, 1,840,311.09 and 385,228.17
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Solution
The fourth proportional to 1,226,676.42, 1,840,311.09 and 385,228.17 is: 577,935.36
Step by Step Solution
- Step 1: Write the proportion equation
1,226,676.42 : 1,840,311.09 = 385,228.17 : x - Step 2: Convert to fraction form
1,226,676.42/1,840,311.09 = 385,228.17/x - Step 3: Cross multiply
1,226,676.42x = 1,840,311.09 × 385,228.17 - Step 4: Simplify right side
1,226,676.42x = 708,939,673,431.41 - Step 5: Solve for x
x = 708,939,673,431.41/1,226,676.42 - Step 6: Final answer
x = 577,935.36
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1.5x scale
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.