Finding the Fourth Proportional to 1,186,276.08, 1,637,052.88 and 642,399.44
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Solution
The fourth proportional to 1,186,276.08, 1,637,052.88 and 642,399.44 is: 886,506.84
Step by Step Solution
- Step 1: Write the proportion equation
1,186,276.08 : 1,637,052.88 = 642,399.44 : x - Step 2: Convert to fraction form
1,186,276.08/1,637,052.88 = 642,399.44/x - Step 3: Cross multiply
1,186,276.08x = 1,637,052.88 × 642,399.44 - Step 4: Simplify right side
1,186,276.08x = 1,051,641,853,362.39 - Step 5: Solve for x
x = 1,051,641,853,362.39/1,186,276.08 - Step 6: Final answer
x = 886,506.84
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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.