Finding the Fourth Proportional to 1,247,749.14, 1,721,898.97 and 674,789.30
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Solution
The fourth proportional to 1,247,749.14, 1,721,898.97 and 674,789.30 is: 931,212.02
Step by Step Solution
- Step 1: Write the proportion equation
1,247,749.14 : 1,721,898.97 = 674,789.30 : x - Step 2: Convert to fraction form
1,247,749.14/1,721,898.97 = 674,789.30/x - Step 3: Cross multiply
1,247,749.14x = 1,721,898.97 × 674,789.30 - Step 4: Simplify right side
1,247,749.14x = 1,161,919,000,637.02 - Step 5: Solve for x
x = 1,161,919,000,637.02/1,247,749.14 - Step 6: Final answer
x = 931,212.02
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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.