Finding the Fourth Proportional to 815,293.29, 1,125,208.56 and 493,005.70
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Solution
The fourth proportional to 815,293.29, 1,125,208.56 and 493,005.70 is: 680,410.65
Step by Step Solution
- Step 1: Write the proportion equation
815,293.29 : 1,125,208.56 = 493,005.70 : x - Step 2: Convert to fraction form
815,293.29/1,125,208.56 = 493,005.70/x - Step 3: Cross multiply
815,293.29x = 1,125,208.56 × 493,005.70 - Step 4: Simplify right side
815,293.29x = 554,734,233,768.79 - Step 5: Solve for x
x = 554,734,233,768.79/815,293.29 - Step 6: Final answer
x = 680,410.65
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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.