Finding the Fourth Proportional to 811,098.45, 1,119,323.11 and 448,546.70
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Solution
The fourth proportional to 811,098.45, 1,119,323.11 and 448,546.70 is: 618,998.45
Step by Step Solution
- Step 1: Write the proportion equation
811,098.45 : 1,119,323.11 = 448,546.70 : x - Step 2: Convert to fraction form
811,098.45/1,119,323.11 = 448,546.70/x - Step 3: Cross multiply
811,098.45x = 1,119,323.11 × 448,546.70 - Step 4: Simplify right side
811,098.45x = 502,068,687,224.24 - Step 5: Solve for x
x = 502,068,687,224.24/811,098.45 - Step 6: Final answer
x = 618,998.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.