Finding the Fourth Proportional to 1,353,905.68, 1,869,239.34 and 871,309.48
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Solution
The fourth proportional to 1,353,905.68, 1,869,239.34 and 871,309.48 is: 1,202,953.78
Step by Step Solution
- Step 1: Write the proportion equation
1,353,905.68 : 1,869,239.34 = 871,309.48 : x - Step 2: Convert to fraction form
1,353,905.68/1,869,239.34 = 871,309.48/x - Step 3: Cross multiply
1,353,905.68x = 1,869,239.34 × 871,309.48 - Step 4: Simplify right side
1,353,905.68x = 1,628,685,957,330.94 - Step 5: Solve for x
x = 1,628,685,957,330.94/1,353,905.68 - Step 6: Final answer
x = 1,202,953.78
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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.