Finding the Fourth Proportional to 1,379,979.08, 1,904,370.86 and 768,118.74
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Solution
The fourth proportional to 1,379,979.08, 1,904,370.86 and 768,118.74 is: 1,060,003.71
Step by Step Solution
- Step 1: Write the proportion equation
1,379,979.08 : 1,904,370.86 = 768,118.74 : x - Step 2: Convert to fraction form
1,379,979.08/1,904,370.86 = 768,118.74/x - Step 3: Cross multiply
1,379,979.08x = 1,904,370.86 × 768,118.74 - Step 4: Simplify right side
1,379,979.08x = 1,462,782,945,475.92 - Step 5: Solve for x
x = 1,462,782,945,475.92/1,379,979.08 - Step 6: Final answer
x = 1,060,003.71
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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.