Finding the Fourth Proportional to 811,373.76, 1,119,653.28 and 448,791.84
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Solution
The fourth proportional to 811,373.76, 1,119,653.28 and 448,791.84 is: 619,309.23
Step by Step Solution
- Step 1: Write the proportion equation
811,373.76 : 1,119,653.28 = 448,791.84 : x - Step 2: Convert to fraction form
811,373.76/1,119,653.28 = 448,791.84/x - Step 3: Cross multiply
811,373.76x = 1,119,653.28 × 448,791.84 - Step 4: Simplify right side
811,373.76x = 502,491,255,693.24 - Step 5: Solve for x
x = 502,491,255,693.24/811,373.76 - Step 6: Final answer
x = 619,309.23
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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.