Finding the Fourth Proportional to 618,367.68, 926,343.50 and 426,207.96
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Solution
The fourth proportional to 618,367.68, 926,343.50 and 426,207.96 is: 638,479.32
Step by Step Solution
- Step 1: Write the proportion equation
618,367.68 : 926,343.50 = 426,207.96 : x - Step 2: Convert to fraction form
618,367.68/926,343.50 = 426,207.96/x - Step 3: Cross multiply
618,367.68x = 926,343.50 × 426,207.96 - Step 4: Simplify right side
618,367.68x = 394,814,973,394.26 - Step 5: Solve for x
x = 394,814,973,394.26/618,367.68 - Step 6: Final answer
x = 638,479.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.