Finding the Fourth Proportional to 1,532,920.96, 2,115,496.20 and 853,857.28
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Solution
The fourth proportional to 1,532,920.96, 2,115,496.20 and 853,857.28 is: 1,178,359.41
Step by Step Solution
- Step 1: Write the proportion equation
1,532,920.96 : 2,115,496.20 = 853,857.28 : x - Step 2: Convert to fraction form
1,532,920.96/2,115,496.20 = 853,857.28/x - Step 3: Cross multiply
1,532,920.96x = 2,115,496.20 × 853,857.28 - Step 4: Simplify right side
1,532,920.96x = 1,806,331,831,182.34 - Step 5: Solve for x
x = 1,806,331,831,182.34/1,532,920.96 - Step 6: Final answer
x = 1,178,359.41
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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.