Finding the Fourth Proportional to 1,263,012.84, 1,742,866.74 and 689,931.36
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Solution
The fourth proportional to 1,263,012.84, 1,742,866.74 and 689,931.36 is: 952,055.58
Step by Step Solution
- Step 1: Write the proportion equation
1,263,012.84 : 1,742,866.74 = 689,931.36 : x - Step 2: Convert to fraction form
1,263,012.84/1,742,866.74 = 689,931.36/x - Step 3: Cross multiply
1,263,012.84x = 1,742,866.74 × 689,931.36 - Step 4: Simplify right side
1,263,012.84x = 1,202,458,420,226.97 - Step 5: Solve for x
x = 1,202,458,420,226.97/1,263,012.84 - Step 6: Final answer
x = 952,055.58
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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.