Finding the Fourth Proportional to 1,640,493.78, 2,263,887.68 and 915,372.06
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Solution
The fourth proportional to 1,640,493.78, 2,263,887.68 and 915,372.06 is: 1,263,216.94
Step by Step Solution
- Step 1: Write the proportion equation
1,640,493.78 : 2,263,887.68 = 915,372.06 : x - Step 2: Convert to fraction form
1,640,493.78/2,263,887.68 = 915,372.06/x - Step 3: Cross multiply
1,640,493.78x = 2,263,887.68 × 915,372.06 - Step 4: Simplify right side
1,640,493.78x = 2,072,299,524,673.36 - Step 5: Solve for x
x = 2,072,299,524,673.36/1,640,493.78 - Step 6: Final answer
x = 1,263,216.94
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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.