Finding the Fourth Proportional to 1,021,475.13, 1,532,208.60 and 311,501.12
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Solution
The fourth proportional to 1,021,475.13, 1,532,208.60 and 311,501.12 is: 467,250.43
Step by Step Solution
- Step 1: Write the proportion equation
1,021,475.13 : 1,532,208.60 = 311,501.12 : x - Step 2: Convert to fraction form
1,021,475.13/1,532,208.60 = 311,501.12/x - Step 3: Cross multiply
1,021,475.13x = 1,532,208.60 × 311,501.12 - Step 4: Simplify right side
1,021,475.13x = 477,284,693,416.13 - Step 5: Solve for x
x = 477,284,693,416.13/1,021,475.13 - Step 6: Final answer
x = 467,250.43
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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.