Finding the Fourth Proportional to 621,734.68, 857,993.90 and 353,462.68
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Solution
The fourth proportional to 621,734.68, 857,993.90 and 353,462.68 is: 487,778.52
Step by Step Solution
- Step 1: Write the proportion equation
621,734.68 : 857,993.90 = 353,462.68 : x - Step 2: Convert to fraction form
621,734.68/857,993.90 = 353,462.68/x - Step 3: Cross multiply
621,734.68x = 857,993.90 × 353,462.68 - Step 4: Simplify right side
621,734.68x = 303,268,823,317.65 - Step 5: Solve for x
x = 303,268,823,317.65/621,734.68 - Step 6: Final answer
x = 487,778.52
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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.