Finding the Fourth Proportional to 815,945.25, 1,125,938.49 and 471,803.51
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Solution
The fourth proportional to 815,945.25, 1,125,938.49 and 471,803.51 is: 651,050.70
Step by Step Solution
- Step 1: Write the proportion equation
815,945.25 : 1,125,938.49 = 471,803.51 : x - Step 2: Convert to fraction form
815,945.25/1,125,938.49 = 471,803.51/x - Step 3: Cross multiply
815,945.25x = 1,125,938.49 × 471,803.51 - Step 4: Simplify right side
815,945.25x = 531,221,725,996.41 - Step 5: Solve for x
x = 531,221,725,996.41/815,945.25 - Step 6: Final answer
x = 651,050.70
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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.