Finding the Fourth Proportional to 1,982,592.96, 2,735,889.12 and 1,123,135.68
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Solution
The fourth proportional to 1,982,592.96, 2,735,889.12 and 1,123,135.68 is: 1,549,876.73
Step by Step Solution
- Step 1: Write the proportion equation
1,982,592.96 : 2,735,889.12 = 1,123,135.68 : x - Step 2: Convert to fraction form
1,982,592.96/2,735,889.12 = 1,123,135.68/x - Step 3: Cross multiply
1,982,592.96x = 2,735,889.12 × 1,123,135.68 - Step 4: Simplify right side
1,982,592.96x = 3,072,774,687,195.80 - Step 5: Solve for x
x = 3,072,774,687,195.80/1,982,592.96 - Step 6: Final answer
x = 1,549,876.73
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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.