Finding the Fourth Proportional to 1,225,762.47, 1,691,606.79 and 1,021,471.38
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Solution
The fourth proportional to 1,225,762.47, 1,691,606.79 and 1,021,471.38 is: 1,409,675.99
Step by Step Solution
- Step 1: Write the proportion equation
1,225,762.47 : 1,691,606.79 = 1,021,471.38 : x - Step 2: Convert to fraction form
1,225,762.47/1,691,606.79 = 1,021,471.38/x - Step 3: Cross multiply
1,225,762.47x = 1,691,606.79 × 1,021,471.38 - Step 4: Simplify right side
1,225,762.47x = 1,727,927,922,198.67 - Step 5: Solve for x
x = 1,727,927,922,198.67/1,225,762.47 - Step 6: Final answer
x = 1,409,675.99
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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.