Finding the Fourth Proportional to 633,423.44, 873,614.76 and 490,569.68
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Solution
The fourth proportional to 633,423.44, 873,614.76 and 490,569.68 is: 676,591.50
Step by Step Solution
- Step 1: Write the proportion equation
633,423.44 : 873,614.76 = 490,569.68 : x - Step 2: Convert to fraction form
633,423.44/873,614.76 = 490,569.68/x - Step 3: Cross multiply
633,423.44x = 873,614.76 × 490,569.68 - Step 4: Simplify right side
633,423.44x = 428,568,913,256.48 - Step 5: Solve for x
x = 428,568,913,256.48/633,423.44 - Step 6: Final answer
x = 676,591.50
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1.5x scale
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.