Finding the Fourth Proportional to 874,449.21, 1,206,723.71 and 476,631.05
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Solution
The fourth proportional to 874,449.21, 1,206,723.71 and 476,631.05 is: 657,742.02
Step by Step Solution
- Step 1: Write the proportion equation
874,449.21 : 1,206,723.71 = 476,631.05 : x - Step 2: Convert to fraction form
874,449.21/1,206,723.71 = 476,631.05/x - Step 3: Cross multiply
874,449.21x = 1,206,723.71 × 476,631.05 - Step 4: Simplify right side
874,449.21x = 575,161,988,957.20 - Step 5: Solve for x
x = 575,161,988,957.20/874,449.21 - Step 6: Final answer
x = 657,742.02
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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.