Finding the Fourth Proportional to 2,169,172.08, 2,993,636.70 and 1,202,605.56
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Solution
The fourth proportional to 2,169,172.08, 2,993,636.70 and 1,202,605.56 is: 1,659,695.04
Step by Step Solution
- Step 1: Write the proportion equation
2,169,172.08 : 2,993,636.70 = 1,202,605.56 : x - Step 2: Convert to fraction form
2,169,172.08/2,993,636.70 = 1,202,605.56/x - Step 3: Cross multiply
2,169,172.08x = 2,993,636.70 × 1,202,605.56 - Step 4: Simplify right side
2,169,172.08x = 3,600,164,140,040.05 - Step 5: Solve for x
x = 3,600,164,140,040.05/2,169,172.08 - Step 6: Final answer
x = 1,659,695.04
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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.