Finding the Fourth Proportional to 775,445.22, 1,070,043.79 and 448,701.75
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Solution
The fourth proportional to 775,445.22, 1,070,043.79 and 448,701.75 is: 619,167.56
Step by Step Solution
- Step 1: Write the proportion equation
775,445.22 : 1,070,043.79 = 448,701.75 : x - Step 2: Convert to fraction form
775,445.22/1,070,043.79 = 448,701.75/x - Step 3: Cross multiply
775,445.22x = 1,070,043.79 × 448,701.75 - Step 4: Simplify right side
775,445.22x = 480,130,521,149.63 - Step 5: Solve for x
x = 480,130,521,149.63/775,445.22 - Step 6: Final answer
x = 619,167.56
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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.