Finding the Fourth Proportional to 1,221,044.29, 1,685,141.99 and 677,355.37
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Solution
The fourth proportional to 1,221,044.29, 1,685,141.99 and 677,355.37 is: 934,806.36
Step by Step Solution
- Step 1: Write the proportion equation
1,221,044.29 : 1,685,141.99 = 677,355.37 : x - Step 2: Convert to fraction form
1,221,044.29/1,685,141.99 = 677,355.37/x - Step 3: Cross multiply
1,221,044.29x = 1,685,141.99 × 677,355.37 - Step 4: Simplify right side
1,221,044.29x = 1,141,439,964,326.50 - Step 5: Solve for x
x = 1,141,439,964,326.50/1,221,044.29 - Step 6: Final answer
x = 934,806.36
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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.