Finding the Fourth Proportional to 2,551,393.48, 3,520,931.72 and 1,405,471.08
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Solution
The fourth proportional to 2,551,393.48, 3,520,931.72 and 1,405,471.08 is: 1,939,554.89
Step by Step Solution
- Step 1: Write the proportion equation
2,551,393.48 : 3,520,931.72 = 1,405,471.08 : x - Step 2: Convert to fraction form
2,551,393.48/3,520,931.72 = 1,405,471.08/x - Step 3: Cross multiply
2,551,393.48x = 3,520,931.72 × 1,405,471.08 - Step 4: Simplify right side
2,551,393.48x = 4,948,567,707,114.66 - Step 5: Solve for x
x = 4,948,567,707,114.66/2,551,393.48 - Step 6: Final answer
x = 1,939,554.89
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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.