Finding the Fourth Proportional to 905,161.68, 1,357,917.48 and 306,220.32
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Solution
The fourth proportional to 905,161.68, 1,357,917.48 and 306,220.32 is: 459,389.67
Step by Step Solution
- Step 1: Write the proportion equation
905,161.68 : 1,357,917.48 = 306,220.32 : x - Step 2: Convert to fraction form
905,161.68/1,357,917.48 = 306,220.32/x - Step 3: Cross multiply
905,161.68x = 1,357,917.48 × 306,220.32 - Step 4: Simplify right side
905,161.68x = 415,821,925,259.19 - Step 5: Solve for x
x = 415,821,925,259.19/905,161.68 - Step 6: Final answer
x = 459,389.67
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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.