Finding the Fourth Proportional to 1,212,437.92, 1,818,656.56 and 413,719.40
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Solution
The fourth proportional to 1,212,437.92, 1,818,656.56 and 413,719.40 is: 620,578.99
Step by Step Solution
- Step 1: Write the proportion equation
1,212,437.92 : 1,818,656.56 = 413,719.40 : x - Step 2: Convert to fraction form
1,212,437.92/1,818,656.56 = 413,719.40/x - Step 3: Cross multiply
1,212,437.92x = 1,818,656.56 × 413,719.40 - Step 4: Simplify right side
1,212,437.92x = 752,413,500,809.26 - Step 5: Solve for x
x = 752,413,500,809.26/1,212,437.92 - Step 6: Final answer
x = 620,578.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.