Finding the Fourth Proportional to 762,272.27, 1,052,171.29 and 490,340.17
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Solution
The fourth proportional to 762,272.27, 1,052,171.29 and 490,340.17 is: 676,820.95
Step by Step Solution
- Step 1: Write the proportion equation
762,272.27 : 1,052,171.29 = 490,340.17 : x - Step 2: Convert to fraction form
762,272.27/1,052,171.29 = 490,340.17/x - Step 3: Cross multiply
762,272.27x = 1,052,171.29 × 490,340.17 - Step 4: Simplify right side
762,272.27x = 515,921,843,423.30 - Step 5: Solve for x
x = 515,921,843,423.30/762,272.27 - Step 6: Final answer
x = 676,820.95
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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.