Finding the Fourth Proportional to 1,277,720, 1,763,261.76 and 704,775.68
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Solution
The fourth proportional to 1,277,720, 1,763,261.76 and 704,775.68 is: 972,594.94
Step by Step Solution
- Step 1: Write the proportion equation
1,277,720 : 1,763,261.76 = 704,775.68 : x - Step 2: Convert to fraction form
1,277,720/1,763,261.76 = 704,775.68/x - Step 3: Cross multiply
1,277,720x = 1,763,261.76 × 704,775.68 - Step 4: Simplify right side
1,277,720x = 1,242,704,005,922.00 - Step 5: Solve for x
x = 1,242,704,005,922.00/1,277,720 - Step 6: Final answer
x = 972,594.94
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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.