Finding the Fourth Proportional to 1,780,917.12, 2,457,981.36 and 1,350,471.60
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Solution
The fourth proportional to 1,780,917.12, 2,457,981.36 and 1,350,471.60 is: 1,863,890.23
Step by Step Solution
- Step 1: Write the proportion equation
1,780,917.12 : 2,457,981.36 = 1,350,471.60 : x - Step 2: Convert to fraction form
1,780,917.12/2,457,981.36 = 1,350,471.60/x - Step 3: Cross multiply
1,780,917.12x = 2,457,981.36 × 1,350,471.60 - Step 4: Simplify right side
1,780,917.12x = 3,319,434,020,009.38 - Step 5: Solve for x
x = 3,319,434,020,009.38/1,780,917.12 - Step 6: Final answer
x = 1,863,890.23
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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.