Finding the Fourth Proportional to 815,698.91, 1,125,633.21 and 453,145.56
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Solution
The fourth proportional to 815,698.91, 1,125,633.21 and 453,145.56 is: 625,323.50
Step by Step Solution
- Step 1: Write the proportion equation
815,698.91 : 1,125,633.21 = 453,145.56 : x - Step 2: Convert to fraction form
815,698.91/1,125,633.21 = 453,145.56/x - Step 3: Cross multiply
815,698.91x = 1,125,633.21 × 453,145.56 - Step 4: Simplify right side
815,698.91x = 510,075,691,300.05 - Step 5: Solve for x
x = 510,075,691,300.05/815,698.91 - Step 6: Final answer
x = 625,323.50
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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.