Finding the Fourth Proportional to 1,405,106.45, 2,107,656.55 and 1,085,722.73
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Solution
The fourth proportional to 1,405,106.45, 2,107,656.55 and 1,085,722.73 is: 1,628,581.68
Step by Step Solution
- Step 1: Write the proportion equation
1,405,106.45 : 2,107,656.55 = 1,085,722.73 : x - Step 2: Convert to fraction form
1,405,106.45/2,107,656.55 = 1,085,722.73/x - Step 3: Cross multiply
1,405,106.45x = 2,107,656.55 × 1,085,722.73 - Step 4: Simplify right side
1,405,106.45x = 2,288,330,623,368.38 - Step 5: Solve for x
x = 2,288,330,623,368.38/1,405,106.45 - Step 6: Final answer
x = 1,628,581.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.