Finding the Fourth Proportional to 1,021,173.16, 1,531,817.34 and 311,224.36
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Solution
The fourth proportional to 1,021,173.16, 1,531,817.34 and 311,224.36 is: 466,854.09
Step by Step Solution
- Step 1: Write the proportion equation
1,021,173.16 : 1,531,817.34 = 311,224.36 : x - Step 2: Convert to fraction form
1,021,173.16/1,531,817.34 = 311,224.36/x - Step 3: Cross multiply
1,021,173.16x = 1,531,817.34 × 311,224.36 - Step 4: Simplify right side
1,021,173.16x = 476,738,871,278.40 - Step 5: Solve for x
x = 476,738,871,278.40/1,021,173.16 - Step 6: Final answer
x = 466,854.09
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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.