Finding the Fourth Proportional to 2,576,707.20, 3,555,945.36 and 1,430,806.68
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Solution
The fourth proportional to 2,576,707.20, 3,555,945.36 and 1,430,806.68 is: 1,974,562.87
Step by Step Solution
- Step 1: Write the proportion equation
2,576,707.20 : 3,555,945.36 = 1,430,806.68 : x - Step 2: Convert to fraction form
2,576,707.20/3,555,945.36 = 1,430,806.68/x - Step 3: Cross multiply
2,576,707.20x = 3,555,945.36 × 1,430,806.68 - Step 4: Simplify right side
2,576,707.20x = 5,087,870,374,803.00 - Step 5: Solve for x
x = 5,087,870,374,803.00/2,576,707.20 - Step 6: Final answer
x = 1,974,562.87
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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.