Finding the Fourth Proportional to 770,028.02, 1,149,402.04 and 679,126.58
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Solution
The fourth proportional to 770,028.02, 1,149,402.04 and 679,126.58 is: 1,013,715.68
Step by Step Solution
- Step 1: Write the proportion equation
770,028.02 : 1,149,402.04 = 679,126.58 : x - Step 2: Convert to fraction form
770,028.02/1,149,402.04 = 679,126.58/x - Step 3: Cross multiply
770,028.02x = 1,149,402.04 × 679,126.58 - Step 4: Simplify right side
770,028.02x = 780,589,476,470.22 - Step 5: Solve for x
x = 780,589,476,470.22/770,028.02 - Step 6: Final answer
x = 1,013,715.68
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.