Finding the Fourth Proportional to 1,201,991.32, 1,658,748.42 and 658,161.58
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Solution
The fourth proportional to 1,201,991.32, 1,658,748.42 and 658,161.58 is: 908,263.19
Step by Step Solution
- Step 1: Write the proportion equation
1,201,991.32 : 1,658,748.42 = 658,161.58 : x - Step 2: Convert to fraction form
1,201,991.32/1,658,748.42 = 658,161.58/x - Step 3: Cross multiply
1,201,991.32x = 1,658,748.42 × 658,161.58 - Step 4: Simplify right side
1,201,991.32x = 1,091,724,469,345.15 - Step 5: Solve for x
x = 1,091,724,469,345.15/1,201,991.32 - Step 6: Final answer
x = 908,263.19
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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.