Finding the Fourth Proportional to 1,212,963.57, 1,819,663.21 and 414,058.24
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Solution
The fourth proportional to 1,212,963.57, 1,819,663.21 and 414,058.24 is: 621,161.73
Step by Step Solution
- Step 1: Write the proportion equation
1,212,963.57 : 1,819,663.21 = 414,058.24 : x - Step 2: Convert to fraction form
1,212,963.57/1,819,663.21 = 414,058.24/x - Step 3: Cross multiply
1,212,963.57x = 1,819,663.21 × 414,058.24 - Step 4: Simplify right side
1,212,963.57x = 753,446,546,125.35 - Step 5: Solve for x
x = 753,446,546,125.35/1,212,963.57 - Step 6: Final answer
x = 621,161.73
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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.