Finding the Fourth Proportional to 1,379,974.07, 1,904,363.97 and 768,113.74
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Solution
The fourth proportional to 1,379,974.07, 1,904,363.97 and 768,113.74 is: 1,059,996.82
Step by Step Solution
- Step 1: Write the proportion equation
1,379,974.07 : 1,904,363.97 = 768,113.74 : x - Step 2: Convert to fraction form
1,379,974.07/1,904,363.97 = 768,113.74/x - Step 3: Cross multiply
1,379,974.07x = 1,904,363.97 × 768,113.74 - Step 4: Simplify right side
1,379,974.07x = 1,462,768,120,105.93 - Step 5: Solve for x
x = 1,462,768,120,105.93/1,379,974.07 - Step 6: Final answer
x = 1,059,996.82
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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.