Finding the Fourth Proportional to 817,484.64, 1,226,310.60 and 312,470.70
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Solution
The fourth proportional to 817,484.64, 1,226,310.60 and 312,470.70 is: 468,738.02
Step by Step Solution
- Step 1: Write the proportion equation
817,484.64 : 1,226,310.60 = 312,470.70 : x - Step 2: Convert to fraction form
817,484.64/1,226,310.60 = 312,470.70/x - Step 3: Cross multiply
817,484.64x = 1,226,310.60 × 312,470.70 - Step 4: Simplify right side
817,484.64x = 383,186,131,599.42 - Step 5: Solve for x
x = 383,186,131,599.42/817,484.64 - Step 6: Final answer
x = 468,738.02
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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.