Finding the Fourth Proportional to 979,837.87, 1,352,197.68 and 538,318.14
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Solution
The fourth proportional to 979,837.87, 1,352,197.68 and 538,318.14 is: 742,890.80
Step by Step Solution
- Step 1: Write the proportion equation
979,837.87 : 1,352,197.68 = 538,318.14 : x - Step 2: Convert to fraction form
979,837.87/1,352,197.68 = 538,318.14/x - Step 3: Cross multiply
979,837.87x = 1,352,197.68 × 538,318.14 - Step 4: Simplify right side
979,837.87x = 727,912,540,526.59 - Step 5: Solve for x
x = 727,912,540,526.59/979,837.87 - Step 6: Final answer
x = 742,890.80
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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.