Finding the Fourth Proportional to 2,167,194.06, 2,990,835.09 and 1,307,739.78
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Solution
The fourth proportional to 2,167,194.06, 2,990,835.09 and 1,307,739.78 is: 1,804,745.64
Step by Step Solution
- Step 1: Write the proportion equation
2,167,194.06 : 2,990,835.09 = 1,307,739.78 : x - Step 2: Convert to fraction form
2,167,194.06/2,990,835.09 = 1,307,739.78/x - Step 3: Cross multiply
2,167,194.06x = 2,990,835.09 × 1,307,739.78 - Step 4: Simplify right side
2,167,194.06x = 3,911,234,022,612.88 - Step 5: Solve for x
x = 3,911,234,022,612.88/2,167,194.06 - Step 6: Final answer
x = 1,804,745.64
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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.