Finding the Fourth Proportional to 1,261,694.56, 1,740,905.62 and 717,798.60
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Solution
The fourth proportional to 1,261,694.56, 1,740,905.62 and 717,798.60 is: 990,429.58
Step by Step Solution
- Step 1: Write the proportion equation
1,261,694.56 : 1,740,905.62 = 717,798.60 : x - Step 2: Convert to fraction form
1,261,694.56/1,740,905.62 = 717,798.60/x - Step 3: Cross multiply
1,261,694.56x = 1,740,905.62 × 717,798.60 - Step 4: Simplify right side
1,261,694.56x = 1,249,619,616,768.13 - Step 5: Solve for x
x = 1,249,619,616,768.13/1,261,694.56 - Step 6: Final answer
x = 990,429.58
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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.