Finding the Fourth Proportional to 959,421.68, 1,439,112.32 and 319,771.68
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Solution
The fourth proportional to 959,421.68, 1,439,112.32 and 319,771.68 is: 479,650.79
Step by Step Solution
- Step 1: Write the proportion equation
959,421.68 : 1,439,112.32 = 319,771.68 : x - Step 2: Convert to fraction form
959,421.68/1,439,112.32 = 319,771.68/x - Step 3: Cross multiply
959,421.68x = 1,439,112.32 × 319,771.68 - Step 4: Simplify right side
959,421.68x = 460,187,364,275.10 - Step 5: Solve for x
x = 460,187,364,275.10/959,421.68 - Step 6: Final answer
x = 479,650.79
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1.5x scale
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.