Finding the Fourth Proportional to 1,114,749.84, 1,538,391.12 and 631,304.58
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Solution
The fourth proportional to 1,114,749.84, 1,538,391.12 and 631,304.58 is: 871,220.90
Step by Step Solution
- Step 1: Write the proportion equation
1,114,749.84 : 1,538,391.12 = 631,304.58 : x - Step 2: Convert to fraction form
1,114,749.84/1,538,391.12 = 631,304.58/x - Step 3: Cross multiply
1,114,749.84x = 1,538,391.12 × 631,304.58 - Step 4: Simplify right side
1,114,749.84x = 971,193,359,887.33 - Step 5: Solve for x
x = 971,193,359,887.33/1,114,749.84 - Step 6: Final answer
x = 871,220.90
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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.