Finding the Fourth Proportional to 1,262,762.40, 1,742,649.60 and 689,812.08
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Solution
The fourth proportional to 1,262,762.40, 1,742,649.60 and 689,812.08 is: 951,961.15
Step by Step Solution
- Step 1: Write the proportion equation
1,262,762.40 : 1,742,649.60 = 689,812.08 : x - Step 2: Convert to fraction form
1,262,762.40/1,742,649.60 = 689,812.08/x - Step 3: Cross multiply
1,262,762.40x = 1,742,649.60 × 689,812.08 - Step 4: Simplify right side
1,262,762.40x = 1,202,100,745,287.17 - Step 5: Solve for x
x = 1,202,100,745,287.17/1,262,762.40 - Step 6: Final answer
x = 951,961.15
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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.