Finding the Fourth Proportional to 1,212,259.44, 1,672,511.76 and 782,829.84
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Solution
The fourth proportional to 1,212,259.44, 1,672,511.76 and 782,829.84 is: 1,080,042.83
Step by Step Solution
- Step 1: Write the proportion equation
1,212,259.44 : 1,672,511.76 = 782,829.84 : x - Step 2: Convert to fraction form
1,212,259.44/1,672,511.76 = 782,829.84/x - Step 3: Cross multiply
1,212,259.44x = 1,672,511.76 × 782,829.84 - Step 4: Simplify right side
1,212,259.44x = 1,309,292,113,478.92 - Step 5: Solve for x
x = 1,309,292,113,478.92/1,212,259.44 - Step 6: Final answer
x = 1,080,042.83
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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.