Finding the Fourth Proportional to 1,532,580.12, 2,115,026.17 and 853,516.62
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Solution
The fourth proportional to 1,532,580.12, 2,115,026.17 and 853,516.62 is: 1,177,889.47
Step by Step Solution
- Step 1: Write the proportion equation
1,532,580.12 : 2,115,026.17 = 853,516.62 : x - Step 2: Convert to fraction form
1,532,580.12/2,115,026.17 = 853,516.62/x - Step 3: Cross multiply
1,532,580.12x = 2,115,026.17 × 853,516.62 - Step 4: Simplify right side
1,532,580.12x = 1,805,209,983,348.46 - Step 5: Solve for x
x = 1,805,209,983,348.46/1,532,580.12 - Step 6: Final answer
x = 1,177,889.47
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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.