Finding the Fourth Proportional to 1,212,127.20, 1,672,364.87 and 702,727.92
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Solution
The fourth proportional to 1,212,127.20, 1,672,364.87 and 702,727.92 is: 969,549.63
Step by Step Solution
- Step 1: Write the proportion equation
1,212,127.20 : 1,672,364.87 = 702,727.92 : x - Step 2: Convert to fraction form
1,212,127.20/1,672,364.87 = 702,727.92/x - Step 3: Cross multiply
1,212,127.20x = 1,672,364.87 × 702,727.92 - Step 4: Simplify right side
1,212,127.20x = 1,175,217,483,062.53 - Step 5: Solve for x
x = 1,175,217,483,062.53/1,212,127.20 - Step 6: Final answer
x = 969,549.63
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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.