Finding the Fourth Proportional to 1,212,668.24, 1,673,059.61 and 777,325.65
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Solution
The fourth proportional to 1,212,668.24, 1,673,059.61 and 777,325.65 is: 1,072,438.53
Step by Step Solution
- Step 1: Write the proportion equation
1,212,668.24 : 1,673,059.61 = 777,325.65 : x - Step 2: Convert to fraction form
1,212,668.24/1,673,059.61 = 777,325.65/x - Step 3: Cross multiply
1,212,668.24x = 1,673,059.61 × 777,325.65 - Step 4: Simplify right side
1,212,668.24x = 1,300,512,151,219.34 - Step 5: Solve for x
x = 1,300,512,151,219.34/1,212,668.24 - Step 6: Final answer
x = 1,072,438.53
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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.