Finding the Fourth Proportional to 776,857.68, 1,072,117.49 and 470,946.96
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Solution
The fourth proportional to 776,857.68, 1,072,117.49 and 470,946.96 is: 649,939.47
Step by Step Solution
- Step 1: Write the proportion equation
776,857.68 : 1,072,117.49 = 470,946.96 : x - Step 2: Convert to fraction form
776,857.68/1,072,117.49 = 470,946.96/x - Step 3: Cross multiply
776,857.68x = 1,072,117.49 × 470,946.96 - Step 4: Simplify right side
776,857.68x = 504,910,470,323.60 - Step 5: Solve for x
x = 504,910,470,323.60/776,857.68 - Step 6: Final answer
x = 649,939.47
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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.