Finding the Fourth Proportional to 1,021,520.70, 1,532,281.05 and 667,226.70
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Solution
The fourth proportional to 1,021,520.70, 1,532,281.05 and 667,226.70 is: 1,000,840.05
Step by Step Solution
- Step 1: Write the proportion equation
1,021,520.70 : 1,532,281.05 = 667,226.70 : x - Step 2: Convert to fraction form
1,021,520.70/1,532,281.05 = 667,226.70/x - Step 3: Cross multiply
1,021,520.70x = 1,532,281.05 × 667,226.70 - Step 4: Simplify right side
1,021,520.70x = 1,022,378,828,464.03 - Step 5: Solve for x
x = 1,022,378,828,464.03/1,021,520.70 - Step 6: Final answer
x = 1,000,840.05
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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.