Finding the Fourth Proportional to 1,621,762.62, 2,237,661.21 and 968,261.68
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Solution
The fourth proportional to 1,621,762.62, 2,237,661.21 and 968,261.68 is: 1,335,979.49
Step by Step Solution
- Step 1: Write the proportion equation
1,621,762.62 : 2,237,661.21 = 968,261.68 : x - Step 2: Convert to fraction form
1,621,762.62/2,237,661.21 = 968,261.68/x - Step 3: Cross multiply
1,621,762.62x = 2,237,661.21 × 968,261.68 - Step 4: Simplify right side
1,621,762.62x = 2,166,641,602,465.43 - Step 5: Solve for x
x = 2,166,641,602,465.43/1,621,762.62 - Step 6: Final answer
x = 1,335,979.49
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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.