Finding the Fourth Proportional to 1,542,310.64, 2,128,366.68 and 853,916.48
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Solution
The fourth proportional to 1,542,310.64, 2,128,366.68 and 853,916.48 is: 1,178,392.56
Step by Step Solution
- Step 1: Write the proportion equation
1,542,310.64 : 2,128,366.68 = 853,916.48 : x - Step 2: Convert to fraction form
1,542,310.64/2,128,366.68 = 853,916.48/x - Step 3: Cross multiply
1,542,310.64x = 2,128,366.68 × 853,916.48 - Step 4: Simplify right side
1,542,310.64x = 1,817,447,383,534.89 - Step 5: Solve for x
x = 1,817,447,383,534.89/1,542,310.64 - Step 6: Final answer
x = 1,178,392.56
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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.