Finding the Fourth Proportional to 2,167,271.80, 2,990,802.14 and 1,187,202.98
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Solution
The fourth proportional to 2,167,271.80, 2,990,802.14 and 1,187,202.98 is: 1,638,322.07
Step by Step Solution
- Step 1: Write the proportion equation
2,167,271.80 : 2,990,802.14 = 1,187,202.98 : x - Step 2: Convert to fraction form
2,167,271.80/2,990,802.14 = 1,187,202.98/x - Step 3: Cross multiply
2,167,271.80x = 2,990,802.14 × 1,187,202.98 - Step 4: Simplify right side
2,167,271.80x = 3,550,689,213,198.38 - Step 5: Solve for x
x = 3,550,689,213,198.38/2,167,271.80 - Step 6: Final answer
x = 1,638,322.07
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1.5x scale
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.