Finding the Fourth Proportional to 1,954,917.12, 2,697,785.40 and 1,190,970.12
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Solution
The fourth proportional to 1,954,917.12, 2,697,785.40 and 1,190,970.12 is: 1,643,538.63
Step by Step Solution
- Step 1: Write the proportion equation
1,954,917.12 : 2,697,785.40 = 1,190,970.12 : x - Step 2: Convert to fraction form
1,954,917.12/2,697,785.40 = 1,190,970.12/x - Step 3: Cross multiply
1,954,917.12x = 2,697,785.40 × 1,190,970.12 - Step 4: Simplify right side
1,954,917.12x = 3,212,981,801,572.25 - Step 5: Solve for x
x = 3,212,981,801,572.25/1,954,917.12 - Step 6: Final answer
x = 1,643,538.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.