Finding the Fourth Proportional to 2,158,713.99, 2,979,006.26 and 1,191,823.65
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Solution
The fourth proportional to 2,158,713.99, 2,979,006.26 and 1,191,823.65 is: 1,644,706.12
Step by Step Solution
- Step 1: Write the proportion equation
2,158,713.99 : 2,979,006.26 = 1,191,823.65 : x - Step 2: Convert to fraction form
2,158,713.99/2,979,006.26 = 1,191,823.65/x - Step 3: Cross multiply
2,158,713.99x = 2,979,006.26 × 1,191,823.65 - Step 4: Simplify right side
2,158,713.99x = 3,550,450,108,206.93 - Step 5: Solve for x
x = 3,550,450,108,206.93/2,158,713.99 - Step 6: Final answer
x = 1,644,706.12
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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.