Finding the Fourth Proportional to 1,161,392.09, 1,742,330.61 and 585,339.12
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Solution
The fourth proportional to 1,161,392.09, 1,742,330.61 and 585,339.12 is: 878,130.89
Step by Step Solution
- Step 1: Write the proportion equation
1,161,392.09 : 1,742,330.61 = 585,339.12 : x - Step 2: Convert to fraction form
1,161,392.09/1,742,330.61 = 585,339.12/x - Step 3: Cross multiply
1,161,392.09x = 1,742,330.61 × 585,339.12 - Step 4: Simplify right side
1,161,392.09x = 1,019,854,266,006.46 - Step 5: Solve for x
x = 1,019,854,266,006.46/1,161,392.09 - Step 6: Final answer
x = 878,130.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.