Finding the Fourth Proportional to 2,979,021.05, 4,110,927.99 and 1,689,833.77
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Solution
The fourth proportional to 2,979,021.05, 4,110,927.99 and 1,689,833.77 is: 2,331,901.93
Step by Step Solution
- Step 1: Write the proportion equation
2,979,021.05 : 4,110,927.99 = 1,689,833.77 : x - Step 2: Convert to fraction form
2,979,021.05/4,110,927.99 = 1,689,833.77/x - Step 3: Cross multiply
2,979,021.05x = 4,110,927.99 × 1,689,833.77 - Step 4: Simplify right side
2,979,021.05x = 6,946,784,943,540.22 - Step 5: Solve for x
x = 6,946,784,943,540.22/2,979,021.05 - Step 6: Final answer
x = 2,331,901.93
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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.