Finding the Fourth Proportional to 1,105,647.74, 1,658,480.84 and 306,991.56
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Solution
The fourth proportional to 1,105,647.74, 1,658,480.84 and 306,991.56 is: 460,489.90
Step by Step Solution
- Step 1: Write the proportion equation
1,105,647.74 : 1,658,480.84 = 306,991.56 : x - Step 2: Convert to fraction form
1,105,647.74/1,658,480.84 = 306,991.56/x - Step 3: Cross multiply
1,105,647.74x = 1,658,480.84 × 306,991.56 - Step 4: Simplify right side
1,105,647.74x = 509,139,620,301.71 - Step 5: Solve for x
x = 509,139,620,301.71/1,105,647.74 - Step 6: Final answer
x = 460,489.90
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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.