Finding the Fourth Proportional to 876,072.41, 1,209,238.49 and 513,574.73
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Solution
The fourth proportional to 876,072.41, 1,209,238.49 and 513,574.73 is: 708,884.71
Step by Step Solution
- Step 1: Write the proportion equation
876,072.41 : 1,209,238.49 = 513,574.73 : x - Step 2: Convert to fraction form
876,072.41/1,209,238.49 = 513,574.73/x - Step 3: Cross multiply
876,072.41x = 1,209,238.49 × 513,574.73 - Step 4: Simplify right side
876,072.41x = 621,034,335,314.39 - Step 5: Solve for x
x = 621,034,335,314.39/876,072.41 - Step 6: Final answer
x = 708,884.71
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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.