Finding the Fourth Proportional to 1,542,201.96, 2,128,305.20 and 853,873.79
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Solution
The fourth proportional to 1,542,201.96, 2,128,305.20 and 853,873.79 is: 1,178,382.65
Step by Step Solution
- Step 1: Write the proportion equation
1,542,201.96 : 2,128,305.20 = 853,873.79 : x - Step 2: Convert to fraction form
1,542,201.96/2,128,305.20 = 853,873.79/x - Step 3: Cross multiply
1,542,201.96x = 2,128,305.20 × 853,873.79 - Step 4: Simplify right side
1,542,201.96x = 1,817,304,028,452.10 - Step 5: Solve for x
x = 1,817,304,028,452.10/1,542,201.96 - Step 6: Final answer
x = 1,178,382.65
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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.