Finding the Fourth Proportional to 621,371.44, 859,021.32 and 615,687.68
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Solution
The fourth proportional to 621,371.44, 859,021.32 and 615,687.68 is: 851,163.75
Step by Step Solution
- Step 1: Write the proportion equation
621,371.44 : 859,021.32 = 615,687.68 : x - Step 2: Convert to fraction form
621,371.44/859,021.32 = 615,687.68/x - Step 3: Cross multiply
621,371.44x = 859,021.32 × 615,687.68 - Step 4: Simplify right side
621,371.44x = 528,888,843,581.34 - Step 5: Solve for x
x = 528,888,843,581.34/621,371.44 - Step 6: Final answer
x = 851,163.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.