Finding the Fourth Proportional to 813,125.81, 1,122,112.50 and 450,573.14
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Solution
The fourth proportional to 813,125.81, 1,122,112.50 and 450,573.14 is: 621,790.31
Step by Step Solution
- Step 1: Write the proportion equation
813,125.81 : 1,122,112.50 = 450,573.14 : x - Step 2: Convert to fraction form
813,125.81/1,122,112.50 = 450,573.14/x - Step 3: Cross multiply
813,125.81x = 1,122,112.50 × 450,573.14 - Step 4: Simplify right side
813,125.81x = 505,593,752,558.25 - Step 5: Solve for x
x = 505,593,752,558.25/813,125.81 - Step 6: Final answer
x = 621,790.31
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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.