Finding the Fourth Proportional to 1,212,963.08, 1,819,662.47 and 414,057.74
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Solution
The fourth proportional to 1,212,963.08, 1,819,662.47 and 414,057.74 is: 621,160.97
Step by Step Solution
- Step 1: Write the proportion equation
1,212,963.08 : 1,819,662.47 = 414,057.74 : x - Step 2: Convert to fraction form
1,212,963.08/1,819,662.47 = 414,057.74/x - Step 3: Cross multiply
1,212,963.08x = 1,819,662.47 × 414,057.74 - Step 4: Simplify right side
1,212,963.08x = 753,445,318,722.42 - Step 5: Solve for x
x = 753,445,318,722.42/1,212,963.08 - Step 6: Final answer
x = 621,160.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.