Finding the Fourth Proportional to 2,117,172.77, 2,921,603.20 and 1,199,383.19
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Solution
The fourth proportional to 2,117,172.77, 2,921,603.20 and 1,199,383.19 is: 1,655,094.85
Step by Step Solution
- Step 1: Write the proportion equation
2,117,172.77 : 2,921,603.20 = 1,199,383.19 : x - Step 2: Convert to fraction form
2,117,172.77/2,921,603.20 = 1,199,383.19/x - Step 3: Cross multiply
2,117,172.77x = 2,921,603.20 × 1,199,383.19 - Step 4: Simplify right side
2,117,172.77x = 3,504,121,758,544.36 - Step 5: Solve for x
x = 3,504,121,758,544.36/2,117,172.77 - Step 6: Final answer
x = 1,655,094.85
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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.