Finding the Fourth Proportional to 768,907.55, 1,061,102.27 and 424,742.09
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Solution
The fourth proportional to 768,907.55, 1,061,102.27 and 424,742.09 is: 586,149.53
Step by Step Solution
- Step 1: Write the proportion equation
768,907.55 : 1,061,102.27 = 424,742.09 : x - Step 2: Convert to fraction form
768,907.55/1,061,102.27 = 424,742.09/x - Step 3: Cross multiply
768,907.55x = 1,061,102.27 × 424,742.09 - Step 4: Simplify right side
768,907.55x = 450,694,798,782.13 - Step 5: Solve for x
x = 450,694,798,782.13/768,907.55 - Step 6: Final answer
x = 586,149.53
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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.