Finding the Fourth Proportional to 803,128.80, 1,204,207.85 and 376,758.12
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Solution
The fourth proportional to 803,128.80, 1,204,207.85 and 376,758.12 is: 564,909.50
Step by Step Solution
- Step 1: Write the proportion equation
803,128.80 : 1,204,207.85 = 376,758.12 : x - Step 2: Convert to fraction form
803,128.80/1,204,207.85 = 376,758.12/x - Step 3: Cross multiply
803,128.80x = 1,204,207.85 × 376,758.12 - Step 4: Simplify right side
803,128.80x = 453,695,091,112.92 - Step 5: Solve for x
x = 453,695,091,112.92/803,128.80 - Step 6: Final answer
x = 564,909.50
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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.