Finding the Fourth Proportional to 620,725.68, 856,602.36 and 352,453.68
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Solution
The fourth proportional to 620,725.68, 856,602.36 and 352,453.68 is: 486,386.60
Step by Step Solution
- Step 1: Write the proportion equation
620,725.68 : 856,602.36 = 352,453.68 : x - Step 2: Convert to fraction form
620,725.68/856,602.36 = 352,453.68/x - Step 3: Cross multiply
620,725.68x = 856,602.36 × 352,453.68 - Step 4: Simplify right side
620,725.68x = 301,912,654,078.69 - Step 5: Solve for x
x = 301,912,654,078.69/620,725.68 - Step 6: Final answer
x = 486,386.60
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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.