Finding the Fourth Proportional to 1,021,476.14, 1,532,210.09 and 311,502.12
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Solution
The fourth proportional to 1,021,476.14, 1,532,210.09 and 311,502.12 is: 467,251.93
Step by Step Solution
- Step 1: Write the proportion equation
1,021,476.14 : 1,532,210.09 = 311,502.12 : x - Step 2: Convert to fraction form
1,021,476.14/1,532,210.09 = 311,502.12/x - Step 3: Cross multiply
1,021,476.14x = 1,532,210.09 × 311,502.12 - Step 4: Simplify right side
1,021,476.14x = 477,286,692,099.15 - Step 5: Solve for x
x = 477,286,692,099.15/1,021,476.14 - Step 6: Final answer
x = 467,251.93
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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.