Finding the Fourth Proportional to 811,338.08, 1,119,636.96 and 448,733.48
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Solution
The fourth proportional to 811,338.08, 1,119,636.96 and 448,733.48 is: 619,246.90
Step by Step Solution
- Step 1: Write the proportion equation
811,338.08 : 1,119,636.96 = 448,733.48 : x - Step 2: Convert to fraction form
811,338.08/1,119,636.96 = 448,733.48/x - Step 3: Cross multiply
811,338.08x = 1,119,636.96 × 448,733.48 - Step 4: Simplify right side
811,338.08x = 502,418,589,397.42 - Step 5: Solve for x
x = 502,418,589,397.42/811,338.08 - Step 6: Final answer
x = 619,246.90
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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.