Finding the Fourth Proportional to 1,145,991.24, 1,717,918.42 and 387,302.20
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Solution
The fourth proportional to 1,145,991.24, 1,717,918.42 and 387,302.20 is: 580,592.21
Step by Step Solution
- Step 1: Write the proportion equation
1,145,991.24 : 1,717,918.42 = 387,302.20 : x - Step 2: Convert to fraction form
1,145,991.24/1,717,918.42 = 387,302.20/x - Step 3: Cross multiply
1,145,991.24x = 1,717,918.42 × 387,302.20 - Step 4: Simplify right side
1,145,991.24x = 665,353,583,486.52 - Step 5: Solve for x
x = 665,353,583,486.52/1,145,991.24 - Step 6: Final answer
x = 580,592.21
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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.