Finding the Fourth Proportional to 810,574.56, 1,118,558.04 and 447,979.68
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Solution
The fourth proportional to 810,574.56, 1,118,558.04 and 447,979.68 is: 618,192.70
Step by Step Solution
- Step 1: Write the proportion equation
810,574.56 : 1,118,558.04 = 447,979.68 : x - Step 2: Convert to fraction form
810,574.56/1,118,558.04 = 447,979.68/x - Step 3: Cross multiply
810,574.56x = 1,118,558.04 × 447,979.68 - Step 4: Simplify right side
810,574.56x = 501,091,272,820.63 - Step 5: Solve for x
x = 501,091,272,820.63/810,574.56 - Step 6: Final answer
x = 618,192.70
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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.