Finding the Fourth Proportional to 770,044.70, 1,062,607.74 and 447,731.94
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Solution
The fourth proportional to 770,044.70, 1,062,607.74 and 447,731.94 is: 617,838.71
Step by Step Solution
- Step 1: Write the proportion equation
770,044.70 : 1,062,607.74 = 447,731.94 : x - Step 2: Convert to fraction form
770,044.70/1,062,607.74 = 447,731.94/x - Step 3: Cross multiply
770,044.70x = 1,062,607.74 × 447,731.94 - Step 4: Simplify right side
770,044.70x = 475,763,424,889.22 - Step 5: Solve for x
x = 475,763,424,889.22/770,044.70 - Step 6: Final answer
x = 617,838.71
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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.