Finding the Fourth Proportional to 1,077,429.19, 1,616,134.07 and 412,581.19
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Solution
The fourth proportional to 1,077,429.19, 1,616,134.07 and 412,581.19 is: 618,868.06
Step by Step Solution
- Step 1: Write the proportion equation
1,077,429.19 : 1,616,134.07 = 412,581.19 : x - Step 2: Convert to fraction form
1,077,429.19/1,616,134.07 = 412,581.19/x - Step 3: Cross multiply
1,077,429.19x = 1,616,134.07 × 412,581.19 - Step 4: Simplify right side
1,077,429.19x = 666,786,515,737.24 - Step 5: Solve for x
x = 666,786,515,737.24/1,077,429.19 - Step 6: Final answer
x = 618,868.06
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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.