Finding the Fourth Proportional to 1,542,205.83, 2,128,310.57 and 853,877.70
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Solution
The fourth proportional to 1,542,205.83, 2,128,310.57 and 853,877.70 is: 1,178,388.06
Step by Step Solution
- Step 1: Write the proportion equation
1,542,205.83 : 2,128,310.57 = 853,877.70 : x - Step 2: Convert to fraction form
1,542,205.83/2,128,310.57 = 853,877.70/x - Step 3: Cross multiply
1,542,205.83x = 2,128,310.57 × 853,877.70 - Step 4: Simplify right side
1,542,205.83x = 1,817,316,941,908.54 - Step 5: Solve for x
x = 1,817,316,941,908.54/1,542,205.83 - Step 6: Final answer
x = 1,178,388.06
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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.