Finding the Fourth Proportional to 1,716,789.12, 2,369,604.48 and 1,173,144.96
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Solution
The fourth proportional to 1,716,789.12, 2,369,604.48 and 1,173,144.96 is: 1,619,237.63
Step by Step Solution
- Step 1: Write the proportion equation
1,716,789.12 : 2,369,604.48 = 1,173,144.96 : x - Step 2: Convert to fraction form
1,716,789.12/2,369,604.48 = 1,173,144.96/x - Step 3: Cross multiply
1,716,789.12x = 2,369,604.48 × 1,173,144.96 - Step 4: Simplify right side
1,716,789.12x = 2,779,889,552,905.42 - Step 5: Solve for x
x = 2,779,889,552,905.42/1,716,789.12 - Step 6: Final answer
x = 1,619,237.63
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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.