Finding the Fourth Proportional to 2,376,478.44, 3,279,541.08 and 1,288,749.66
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Solution
The fourth proportional to 2,376,478.44, 3,279,541.08 and 1,288,749.66 is: 1,778,474.98
Step by Step Solution
- Step 1: Write the proportion equation
2,376,478.44 : 3,279,541.08 = 1,288,749.66 : x - Step 2: Convert to fraction form
2,376,478.44/3,279,541.08 = 1,288,749.66/x - Step 3: Cross multiply
2,376,478.44x = 3,279,541.08 × 1,288,749.66 - Step 4: Simplify right side
2,376,478.44x = 4,226,507,451,806.03 - Step 5: Solve for x
x = 4,226,507,451,806.03/2,376,478.44 - Step 6: Final answer
x = 1,778,474.98
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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.