Finding the Fourth Proportional to 817,481.64, 1,226,306.10 and 312,467.70
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Solution
The fourth proportional to 817,481.64, 1,226,306.10 and 312,467.70 is: 468,733.52
Step by Step Solution
- Step 1: Write the proportion equation
817,481.64 : 1,226,306.10 = 312,467.70 : x - Step 2: Convert to fraction form
817,481.64/1,226,306.10 = 312,467.70/x - Step 3: Cross multiply
817,481.64x = 1,226,306.10 × 312,467.70 - Step 4: Simplify right side
817,481.64x = 383,181,046,562.97 - Step 5: Solve for x
x = 383,181,046,562.97/817,481.64 - Step 6: Final answer
x = 468,733.52
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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.