Finding the Fourth Proportional to 1,422,125.48, 1,962,561.48 and 777,585.80
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Solution
The fourth proportional to 1,422,125.48, 1,962,561.48 and 777,585.80 is: 1,073,083.89
Step by Step Solution
- Step 1: Write the proportion equation
1,422,125.48 : 1,962,561.48 = 777,585.80 : x - Step 2: Convert to fraction form
1,422,125.48/1,962,561.48 = 777,585.80/x - Step 3: Cross multiply
1,422,125.48x = 1,962,561.48 × 777,585.80 - Step 4: Simplify right side
1,422,125.48x = 1,526,059,938,474.98 - Step 5: Solve for x
x = 1,526,059,938,474.98/1,422,125.48 - Step 6: Final answer
x = 1,073,083.89
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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.